Myrcella was attacked by Gerold "Darkstar" Dayne. She survived but her ear was cut off by Dayne. At that point, she is on the way back to King's Landing, accompanied by Nymeria Sand, and Trystane remains at Sunspear.
Davos, Alliser Thorne and Eddison Tollett are not present at the Wall in the immediate aftermath of Jon Snow's assassination: Davos was sent earlier by Stannis to the White Harbor; Thorne was sent by Jon to scout beyond the Wall, and he has not returned yet; Eddison Tollett was sent by Jon to Long Barrow, assigned as the chief steward.
Theon and Jeyne are found by Mors Umber instead of Brienne and Podrick and are sent to Stannis' camp. Stannis plans to execute Theon and send Jeyne (who is still impersonating Arya Stark) to the Wall before he attacks Winterfell. Theon also reunites with his sister Asha (Yara) who has also been captured by Stannis.
Arya is not routinely attacked while she is a blind beggar. Instead, she is attacked daily by a man she cannot see while cleaning dead bodies in the House of Black and White. The attacker turns out to be the Kindly Man, who is Jaqen in the TV series.
Kevan Lannister, not Jaime, tells Cersei the news about Myrcella. Cersei believes Tyrion is responsible. At that point, Jaime is not present at King's Landing hence is unaware of what happened to his daughter. He is in the Riverlands, leading the Lannister troops to Riverrun.
The bloodriders Aggo and Rakharo, not Jorah and Daario, go to search for Daenerys. Daario is currently held a hostage by the Yunkai, and Jorah is with Tyrion as a member of the Second Sons.
Cersei never comments in the books that Myrcella's personality is the opposite of hers.
Myranda does not exist in the books. Two of Ramsay's servants, Yellow Dick and "Little" Walder Frey, are killed in Winterfell by unknown people (presumably Mance Rayder and the spearwives). Ramsay's reaction to the murders is rage, not sorrow.
Brienne and Pod are searching fruitlessly for Sansa at the Riverlands, while she is safe in the Vale. They never meet the Stark girls and Theon, and are not involved in the events at the North.
In the books, Jaime loathes Cersei for sleeping with many different men.
Cersei discusses Maggy's prophecy with Qyburn and Taena Merryweather, never with Jaime. Taena dismisses the prophecy as nonsense; Qyburn assures Cersei that prophecy can be forestalled.
Jeyne Poole (replaced by Sansa in the series) broke several ribs after Theon landed on top of her. Also, the tip of her nose turned black from frostbite.
There are no ships in Meereen. The three ships Daenerys had were taken apart at her command to build siege machines for conquering the city. Any ships that were at the harbors of Meereen during the siege either fled or were destroyed by Daenerys's troops.
There are no characters named Qhono and Zanrush.
The Dothraki khal Daenerys encounter is Jhaqo, not Moro.
Areo Hotah always watches every visitor of Doran, especially the Sand Snakes, very carefully. He never acts so carelessly like in the show.
Tyrion and Varys are not in Meereen. Varys's location is unknown throughout the fourth and fifth novels, he appears only briefly at King's Landing; Tyrion, who has not met Daenerys so far, is in the camp of the Second Sons with Jorah.
During Daenerys's absence, Meereen is ruled by a council whose members are Ser Barristan Selmy, Grey Worm and more of Daenerys's loyalists.
Hodor's real name in the books is Walder, not Wylis. It is unknown if he ever spoke normally. He does not appear in Bran's visions.
Ned Stark appears younger in Bran's visions than his onscreen appearances in the show, but not as a child.
Euron Greyjoy wears an eyepatch over his left eye. His left eye is described as being a "black eye shining with malice" by his nephew Theon.
Balon's death takes place off-screen, and before Robb's death.
In a sample chapter of the sixth novel it is confirmed that Euron killed Balon, but not by his own hands (he presumably hired a Faceless Man to commit assassination).
While Asha suspects that Euron Greyjoy killed Balon and confronts him about it, his guilt is not confirmed.
Tommen is unaware of the humiliation his mother went through.
Theon never felt or expressed any remorse for any of the atrocities he committed, including the murder of the miller's boys and their mother (in the show they were orphans), nor did he reveal to anyone the truth about Bran and Rickon.
Ramsay, not Theon, who killed Ser Rodrik Cassel in the books.
In the book, Theon is not afraid of the thought that Jon may kill him.
Following the escape from Winterfell, no one offers Theon to join the Watch. Stannis intends to execute him for his crimes, without offering any alternatives.
The conversations between the High Sparrow and Jaime and with Tommen do not occur in the books.
Jaime never reveals to the High Septon or anyone else that he helped Tyrion escape from prison.
Cersei never raised Tommen to be strong, on the contrary: whenever he showed signs of backbone or defiance, Cersei ruthlessly suppressed him by having his whipping boy Pate beaten, or forcing Tommen to whip him himself, threatening to have Qyburn rip Pate's tongue out if Tommen refuses.
The liberation of Deepwood Motte occurs in the books on-screen.
The Glovers did not retake Deepwood Motte. Stannis and his new recruits, the Northern Mountain clans, liberated Deepwood Motte and restored it to the Glovers. Nearly all Asha's troops and ships were destroyed and she was taken captive by Stannis. It happened after Balon's death, not before it.
Following the liberation of Deepwood Motte, there is still one stronghold in the north held by the ironborn - Torrhen's Square, conquered by Dagmer who is still alive in the books.
Asha criticizes the invasion to the North on two separate occasions: when she speaks with Victarion and during the Kingsmoot, but never said that to her father.
It is not Tyrion but Quentyn Martell, Doran's son, who ventures into the catacombs to take possession of Daenerys's dragons, but fails and the dragons escape. He is set on fire by Rhaegal and dies of his burns four days afterwards.
Balon's body is in very poor shape after it washed ashore: bloated and broken, his eyes were eaten by crabs.
The seat of the ironborn kings is called the Seastone Chair in the books, not Salt Throne.
Wun Wun kills someone by striking him against a wall, but it happens before Jon's assassination.
Only Astapor requests assistance from Daenerys, against Yunkai. Yunkai recruits an army and acts against both Astapor and Meereen.
There is no Harald Karstark in the books. Arnolf Karstark, Rickard's uncle and the castellan of Karhold, collaborates with the Boltons not because of Rickard's death, but because he plots to take over Karhold. He pretends to be Stannis's ally, but his scheme is exposed by his great-niece Alys.
Alys Karstark holds a grudge against Robb for executing her father.
The dragons do not fast in Daenerys's absence. They are hungry as ever for meat, including human.
It was not Tywin but Tygett, one of Tyrion's uncles, who told him the last dragon had died a century ago.
The baby is not Gilly's, but Mance Rayder's. Jon forced Gilly to take the latter, while leaving her own baby at Castle Black, to prevent Melisandre from sacrificing him. Gilly has not given a name to her baby since he is not two years old.
Gilly never tells Sam that he is the father of her son.
The scene at the Tower of Joy is not revealed in Bran's vision, but in Ned Stark's feverish dream, when he is recovering from the injury he took after the bloody brawl with Jaime.
The Showdown at the Tower of Joy involved seven Northmen and three members of the Kingsguard, rather than six and two respectively. Ser Oswell Whent was the third Kingsguard present. When Ned says he looked for them on the Trident, it is Ser Gerold Hightower, rather than Ser Arthur Dayne, who replies that they were not there, and Ser Oswell declares, "Woe to the Usurper if we had been."
There is no mention in the books of Arthur Dayne wielding two swords at once. He instead uses his family's ancestral great sword, Dawn, a pale white blade that glows faintly.
Despite the superb skills he displayed before his death, Ser Arthur is shown to be much more modest on the show than he seemed in the book as shown when he wishes Ned "good fortune in the wars to come." In the books, Ser Arthur comes across as somewhat overconfident, like his two sworn brothers, saying, "Our knees do not bend so easily."
It is unknown who killed whom and how the dead perished at the Tower of Joy, only who survived: Ned Stark and Howland Reed.
No Khal Savo is mentioned in the books.
Vala and Dom do not exist in the books.
No one except Cersei and Qyburn knows for sure the true identity of Ser Robert Strong; however, many people have their suspicions.
Cersei commands Qyburn to have the "little birds" spy on the kinglanders only, not all over Westeros.
No one questions Jaime's right to attend the Small Council. He rarely does because politics bore him.
Olenna Tyrell left King's Landing before Margaery was arrested, and has not returned.
Olenna Tyrell never had a seat at the Small Council.
The conversation between Tommen and the High Sparrow does not occur in the books.
Walder Frey is not one of the people in Arya's death list.
Greatjon Umber is alive. He was taken captive by the Freys at the Red Wedding and was used as a hostage to ensure his uncle Hother 'Whoresbane' Umber remains loyal to the Boltons.
Smalljon Umber is dead. He was killed in the Red Wedding.
It is Hother Umber who bends his knee to the Boltons, but reluctantly, because his nephew Greatjon is held hostage. His brother Mors, who joins Stannis, is the one who hates the wildlings because one of them kidnapped his daughter.
Osha, Rickon and Shaggydog went to Skagos. They never encountered the Umbers.
The Three-Eyed Raven does not warn Bran of staying too long in the visions.
The fall of Astapor takes place on-screen.
Pycelle objects to granting Qyburn a title of lord, not to his appointment as Master of Whisperers.
Sansa, Brienne and Podrick have never been to Castle Black.
Jeyne Poole, still impersonating Arya, is sent to Castle Black at Stannis's command.
There is no mention in the books that Sansa was horrible to Jon, only that they were never as close as he and Arya were.
Sansa has no ambitions to rebuild Winterfell. She is oblivious to the events outside the Vale, and has no idea who currently holds Winterfell.
In the novels, Daenerys is not immune to fire. In fact, she badly burns her hands after riding Drogon out of Meereen.
There is no negotiation between the Yunkai lords and Daenerys, and no envoys come to Meereen. Hizdahr travels to Yunkai, and delivers Daenerys their terms for peace: the demand compensations for the damages they suffer as a result of disruption of the slave trade; that Yunkai will resume slaving as before, rebuild Astapor as a slave city, and Daenerys must not interfere; and that she will marry Hizdahr. They do not demand her to leave Meereen. Daenerys does not like the terms they posed (especially the second), but complies without any bargaining. Following Daenerys's departure, the Yunkai pose one more demand - that the dragons will be destroyed.
No one complains that Daenerys accepts the terms posed by Yunkai.
It is not Grazdan mo Eraz (Razdal mo Eraz's analogue book character), but Xaro who offers Daenerys ships to travel to Westeros.
Theon has no idea his father died or that the kingsmoot takes place. He is held captive in Dreadfort at that time.
Theon has not returned to the Iron Islands. After escaping from Winterfell, he is brought to Stannis's camp, where he re-unites with Asha, who is also held prisoner there.
Aggo is one of Daenerys's bloodriders. He and Rakharo went to the Dothraki Sea to look for her.
It is not Jorah who contracted the greyscale but Jon "Griff" Connington, one of the people who traveled with Tyrion.
There is no mentioning in the novels of the High Sparrow's past and father.
Littlefinger never gives Robin any present.
Littlefinger never threatens to have Lord Royce killed.
Robin never did any strenuous physical activity, like practicing archery, as the slightest physical exertion caused him to have seizures. He is never fostered at Runestone.
Yezzan paid 5,000 silvers for Tyrion.
None of the Good Masters of Astapor survived by that point: those who were killed by Daenerys's troops or Cleon, were slain when the Yunkai destroyed Astapor.
Jon receives Ramsay's letter and decides to go and fight him before, not after his men attack him.
The contents of Ramsay's letter are entirely different: Ramsay claims that he killed Stannis and destroyed his host; that he holds Mance Rayder captive and skinned the six spearwives that were with him; he demands Jon to deliver him his bride (Jeyne Poole), Theon, Melisandre, Selyse, Shireen, Mance's baby son and sister in law Val. He has no complaints to Jon about allowing the wildlings to pass the Wall.
Brynden never retook Riverrun as Robb placed him in charge of the castle before his ill-fated journey to the Twins.
There is no mentioning in the books that Braavos was founded by the Faceless Men.
Arya is not a spectator but one of the cast of actors.
The actress who plays the role of Cersei is called Lady Stork, not Crane.
It is unknown yet for what purpose the Kindly Man orders Arya to join the theater, and whom (if at all) she is assigned to kill.
There is no character named Bianca in the books. It is Arya who plays the role of the maid. The maid's name is not mentioned.
The play does not include Ned Stark's character
Bran's visions do not include Hodor, the Night King and the Others.
There is no mentioning in the books who created the Others.
Theon is not present at the kingsmoot. He is imprisoned at Dreadfort at that point. No one takes notice of his absence.
Asha is not the first claimant but the fifth, following Gylbert Farwynd, Erik Ironmaker, Dunstan Drumm, and Victarion.
Asha does not promise to build a fleet. Instead she offers the crowd to make peace with the Northmen.
Euron draws the ironborn's attention by ordering one of his followers to blow a horn.
None of the ironborn know that Theon was castrated; it is never explicitly stated to the readers that he has been.
Asha never explicitly accuses Euron of murdering her father. She only says it is suspicious that he returned one day after Balon's death.
Euron never admits in public that he killed Balon. In a sample chapter of the sixth novel he admits to Aeron that (and that he killed two more of his brothers), but in private.
Euron speaks in public about the dragons, not about Daenerys. He reveals his intentions to wed her only to his brother Victarion, in private.
Aeron does not accept Euron as the king, nor does he drown him. He disappears shortly after the kingsmoot, and later it is revealed he was imprisoned by Euron.
Euron does not intend to kill Asha, and does not care about Theon. In Asha's absence, he marries her to Erik Ironmaker, whom Asha ridiculed at the kingsmoot.
Asha does not steal any ships. She returns to Deepwood Motte with her own ships and crew.
Euron does not order to build even one ship, because he has hundreds of ships at his disposal, in addition to the Iron fleet.
Hizdahr somehow put a temporary stop to the killings of the Sons of Harpy, at Daenerys's request.
No Red Priests are in Meereen or invited there. Moqorro is on the way to Meereen, but has not arrived yet.
There is no character named Kinvara in the books. Her character is a combination of the Volantene High Priest Benerro, and the priest Moqorro whom Benerro sends to Meereen to help Daenerys.
Maester Aemon is the one who reaches the conclusion that Daenerys is "the prince that was promised".
It is Robb who states that the Karstarks will turn against him because of Rickard's death.
The houses Jon mentions - Mormonts, Cerwyns, Glovers, Hornwood and others (half of the Umbers) - join Stannis. The Mormonts join him during his attack against the ironborn who occupy Deepwood Motte; the other houses join him after he liberates the castle.
There is no House Mazin in the books.
Sansa knows that her great-uncle Brynden is under siege in Riverrun, but has no intentions to go there or assist him.
In the books, the wights move slowly and clumsily.
Euron is not baptized during his coronation.
It is not the Waif, but a man whom Arya refers to as "plague face", who strikes her and says she does not belong there because her heart is too soft to be one of them. Still, he gives her a chance to join them.
The true identity of the mysterious person, known as "Coldhands", has not been revealed yet. It has been speculated that he is Benjen Stark (though George R.R. Martin has denied it). As of the end of A Dance with Dragons, Benjen's fate is unknown.
Coldhands makes his first appearance much earlier in the novels, when he saves Sam and Gilly from wights.
Coldhands does not use a sickle and a flaming flail to fight the wights, but a sword.
Sam and Gilly do not travel straight to Oldtown, but stop in Braavos first, where Sam meets Arya. From there they travel to Oldtown with Maester Aemon, who passes away during the voyage.
At Oldtown, Sam goes to the Citadel first. By the point the books reached, he has not brought yet Gilly and the baby to Horn Hill; he intends to do that later.
Randyll Tarly is not at Horn Hill at the time Sam and Gilly arrive at Oldtown, but in King's Landing.
The baby Gilly carries is not her son, but Mance Rayder's son (omitted from the show). Jon forced her to switch the babies, fearing that Melisandre would sacrifice him. Gilly's baby, who was not given a name yet, remains at Castle Black.
There is no mentioning in the books that Randyll Tarly intends to wed Talla to a member of House Fossoway or anyone else.
There is no book character named Symun Fossoway.
Randyll Tarly forced Sam to join the Night's Watch in order to deny him of his inheritance rights, not to make him tougher or to kill wildlings. The former was given by Sam as his reason for taking the black in Season 1.
There is no mentioning in the books that Randyll Tarly hates the wildlings.
Tommen does not visit Margaery in prison. In fact, he has no idea she is imprisoned.
The Tyrells do not try to free Margaery by force. The High Sparrow agrees to hand her and her cousins to Randyll Tarly's custody. Tommen does not have anything to do with that.
Margaery is not yet forced to perform the walk of atonement.
Tommen does not join the Faith.
Jaime is not dismissed from his office as the Lord Commander of the Kingsguard.
Jaime is not reluctant to go to Riverrun. He is glad to get far from King's Landing and the company of the lickspittles and fools who surround Cersei.
Arya does kill her first target for the Faceless Men, by poisoning a coin (the man bites every coin to make sure they're not fake), and continues her training, becoming an apprentice to a Faceless master. Then she is sent to Izembaro's theater. She has not been ordered yet to kill any of the actors or anyone else.
Jaime never threatens the High Sparrow, nor does he contemplates about assassinating him.
Lame Lothar is not involved in the campaign of conquering Riverrun. Walder Rivers participates, but it is Ryman Frey, Lord Frey's grandson, who commands the Frey force that marches on and subsequently besieges Riverrun.
The Brotherhood Without Banners members do not rally commoners against the Freys, nor do they raid the Freys' supply trains and camps. They act independently, on smaller scale, hunt for lone Freys and hang them.
The Mallisters and Blackwoods have not risen against the Freys. They passively refuse to yield to the Iron Throne in contrast to many other Riverlands lords, but at the same time they take no active actions against the Freys.
The Hound's fate remains unknown; he does not appear after Arya leaves him to die in the third novel. His reappearance is taken from a fan theory based on clues in a chapter from the fourth novel, "A Feast for Crows".
There is no book character named Septon Ray. He is based on two book characters whom Brienne meets in A Feast for Crows - Septon Meribald and the Elder Brother.
Septon Meribald does not give a speech about wars and broken men in public, but tells it to Brienne.
Theon says the sentence "The gods are not done with me" about himself.
Willas Tyrell, not Loras, is the heir of Highgarden.
Septa Unella watches Cersei while she is imprisoned, not Margaery. Cersei is the one who threatens to kill her.
The High Sparrow has nothing to do with Jaime's mission to conquer Riverrun.
Ryman Frey commands the Frey troops which besiege Riverrun. He is the one who threatens to hang Edmure, and beaten by Jaime.
No one threatens to slit Edmure's throat.
Lame Lothar and Black Walder do not take part in the siege of Riverrun; Walder Rivers does, but his role is minor.
Jaime leads nearly 1,000 soldiers to Riverrun, not 8,000. Ilyn Payne, not Bronn, accompanies him.
Daven Lannister builds siege machines before Jaime arrives.
Jaime never promises Bronn anything.
During the parley, Jaime offers Blackfish to resolve the siege by a duel between their champions. Blackfish refuses.
Jaime orders to release Edmure from the gallows after, not before the parley with Blackfish.
The fate of Maege Mormont and Galbart Glover is uncertain. Before going to the Twins, Robb sent them on a mission to the north. It is unknown what happened to them. In the fifth novel, her second daughter Alysane comments that her sisters Jorelle and Lyra are with their mother, but does not say where.
Stannis, not the Glovers, liberates Deepwood Motte. The Boltons have nothing to do with that.
The Mormonts, Glovers, Hornwoods and Cerwyns join Stannis, alongside the northern mountain clans. It is unknown how many warriors arrive from each house, only the total number of the host with its reinforcements - about 5,000.
It is Victarion Greyjoy, not Asha and Theon (who are held captive at Stannis's camp) who arrives at Volantis on the way to Meereen.
Euron does not hunt Asha and Theon.
Yara Greyjoy (called "Asha" in the books) is not bisexual, and never has a sexual encounter with a female.
Jared Frey, not Robett Glover (who is loyal to the Starks), speaks ill about Robb.
There is no character named Gatins in the books.
There are several characters named Morgan in the books, but none of them are outlaws or members of the Brotherhood.
Jaime swore an oath to Catelyn that he would not kill any Starks or Tullys, which is he why he tries - and succeeds - to end the siege without violence.
Brienne and Podrick do not take any part in the siege of Riverrun. They are at the Riverlands, but away from Riverrun, still looking fruitlessly for Sansa.
Brienne has not yet fulfilled her oath to Catelyn as she has not met Arya or Sansa on her journey with Pod, let alone brought them to safety.
Cersei is not allowed to walk around freely, escorted by Ser Robert Strong, and intimidate people.
Jaime has grown distant from Cersei, and has no intentions to kill Tullys or anyone else in order to get back to her.
Brienne never meets the Blackfish in the books.
Except Jaime and Ryman Frey, no one tries to parley with Brynden Tully.
There is no mentioning in the books that Brynden Tully is acquainted with Brienne's father; however, it is possible that they could have met during the War of the Ninepenny Kings or Robert's Rebellion.
Brynden escapes from Riverrun and is believed to still be alive, though his whereabouts are unknown.
It is not Brynden but Lady Stoneheart (the reanimated Catelyn) who accuses Brienne of serving the Lannisters, because of the sword she carries.
Edmure's wife Roslin is pregnant, but by the point the books reached, has not yet given birth.
Jaime threatens to launch Edmure's child into Riverrun with a trebuchet, not catapult.
Jaime tells Edmure his terms right after releasing him from the gallows, and that happens after his unsuccessful parley with Brynden.
Jaime never says he admired Catelyn or that she reminded him of Cersei.
Catelyn did not hit Jaime.
It is not Edmure but Brynden who doubts Jaime's word and reminds him of killing Aerys.
Brynden states that he agreed to parley because he wanted to hear Jaime's excuses for not returning Sansa and Arya as promised, and also to see his stump. Jaime offers to settle the matter by single combat between them. Brynden laughs at the prospect, but refuses, as it would gain him nothing but the pleasure of killing Jaime. Jaime thinks wistfully that such a duel would have been great once, similar to a comment made in the series by Areo Hotah.
To help convince Edmure to surrender Riverrun, Jaime arranges for a musician to sing "The Rains of Castamere".
No one tries to stop Edmure from entering Riverrun.
Jaime has no intentions to allow Brynden go away safely, only to the garrison, and only after they surrender their arms and armor. He intended to send Brynden to the Wall, not to deliver him to the Freys.
Jaime believes that Arya, not Sansa, is dead.
Sansa does not send any letter to Brynden.
In the books, Beric Dondarrion died (permanently) not long after the Red Wedding, his successor - Lady Stoneheart - has shown no interest in using the Brotherhood to stop the White Walkers, or any other altruistic mission. The Brotherhood has fallen low ever since Beric's death, became just like any other outlaw gang, and now it only hunts down and kills Freys and innocent people who has some connection to the Lannisters.
Daenerys is still in Meereen when the siege starts, while Tyrion and Jorah are in the Yunkai camps.
The besieged, led by Ser Barristan Selmy, do not intend to remain in Meereen and wait for the enemies' attack, but to march out and fight them.
The besiegers catapult dead bodies, not fire missiles, into Meereen.
There are no book characters named Steve and Riddell.
None of the Brotherhood have gone rogue and killed harmless villagers. However, they are capable of killing innocent people who have nothing to do the Red Wedding and never harmed Starks or Tullys - as long as they have some connection, even very vague, to the Freys or the Lannisters.
The meeting between Jaime and Brienne occurs directly after the siege of Raventree Hall.
It is Stannis, not Jon, who states that he does not fear Ramsay since he has defeated much worse enemies. Theon is the one who responds "You do not know him".
Rickon's fate is unknown. It is reported he went to Skagos, along with Osha and Shaggydog.
Smalljon Umber was killed during the Red Wedding whilst protecting Robb.
It is Victarion Greyjoy, not Theon and Asha (who are held captives at Stannis's camp), who sails to Meereen. His fleet initially contained 93 ships, but nearly half of them was lost. He has only just reached Meereen in time to participate in the second Battle of Meereen.
Theon never admitted that the children he killed were not Bran and Rickon. Tyrion, and anyone else who heard about the alleged killing of the Stark boys, never doubted that.
Neither Asha nor anyone else ever claimed that Euron murdered Balon.
Jaime has never told anyone, except Brienne, about the Mad King's plan to destroy King's Landing by wildfire, and the reason for killing him.
Daenerys was never told about her father's plan to destroy King's Landing with wildfire.
Daenerys never spoke ill about her father.
Asha did not mean to continue raiding. At the kingsmoot, her platform was to make peace with the north.
Once the besiegers start catapulting at Meereen, there are no further attempts of parley.
Rhaegal and Viserion do not get free on their own. Quentyn Martell unintentionally set them free in attempt to steal them.
Yezzan is one of the prominent Wise Masters, not an "outsider lowborn" and was on the verge of being chosen as supreme commander of the Yunkish forces before his death. He dies before the battle begins, having contracted the bloody flux.
The Sons of the Harpy never act in broad daylight - in fact members of the group are never seen committing the murders for which they are blamed.
By the time the battle starts, Daenerys has not yet returned to Meereen.
The Yunkai lords never demanded to return the Unsullied Daenerys acquired at Astapor, nor Missandei.
The only book character named "Belicho" was a Volantene triarch belonging to the Tiger faction, his unbroken succession of conquests and victories ended abruptly when he was reportedly eaten by giants.
Volantis has joined the slavers' coalition against Daenerys, but by the time the battle starts, its fleet has not arrived yet to the Slaver's Bay.
Mance Rayder is not dead. It was Lord of Bones whom Stannis executed, disguised like Mance by Melisandre's magic.
In the show, Jon says "We're going to bury my brother in the crypt next to my father", indicating that Ned's bones were delivered to Winterfell and properly buried in the crypts. In the books, Catelyn assigned Hallis Mollen to deliver Ned's bones to Winterfell, but his party has not reached its destination so far, and it is unknown what has become of them and of Ned's bones.
Lord Walder Frey, Lothar, Walder Rivers, Black Walder, Mace Tyrell, Margaery Tyrell, Loras Tyrell, Lancel, Tommen and the High Sparrow are alive.
Loras was never arrested and put on trial, nor did he ever join the Faith. He was sent by Cersei to conquer Dragonstone, where he was gravely injured.
Loras has renounced his title and claims on Highgarden long ago, when he joined the Kingsguard. In any case, his elder brother Willas is the heir to Highgarden.
Loras never said Renly was a traitor.
Jaime does not go to the Twins after resolving the siege of Riverrun, but to Raventree Hall. So far he has not returned to King's Landing.
Varys, not Qyburn, murders Pycelle. The murder occurs off-screen.
Kevan, not Pycelle or Lancel, is lured to a death trap by one of the Little Birds.
Pycelle does not die as a result of multiple stab wounds. Instead, his skull is bashed.
Kevan is fatally injured by an arrow Varys shoots at him. Varys apologizes, explaining why it was necessary to kill him and Pycelle, then Kevan is finished off by the Little Birds.
Sam does not bring Gilly and the baby to the Citadel.
The white raven is sent to King's Landing, not Winterfell.
The Freys who are killed and baked in a pie are not Black Walder and Lothar. Jared, Rhaegar and Symond Frey disappear on their way from White Harbor to Winterfell; it is likely that they were baked into pies on the orders of Lord Wyman Manderly, but it has not been confirmed yet. Arya, who is still in Braavos at that point, has nothing to do with their deaths.
The pies are brought to Ramsay's wedding, not to the Twins. Lord Frey does not attend the wedding, therefore does not eat the pies, but his third and sixth sons Aenys and Hosteen do. They are not told afterwards what the pies are made of.
Of the Freys who ate from the pies, only Aenys is killed. Arya has nothing to do with his death.
House Glover always supported the Starks.
It is not Lyanna Mormont but Wylla, Lord Manderly's granddaughter, who speaks in favor of the Starks.
Davos, not Lyanna Mormont, reminds Lord Manderly of his son's death at the Red Wedding.
Lord Manderly and Robett Glover declare their loyalty to the Starks only in private, in front of Davos.
Lord Manderly is described as so obese that he cannot ride a horse, leading to his nickname, "Lord Too Fat To Sit A Horse".
Cley Cerwyn is long dead, killed by the Boltons.
Sam explains why Coldhands cannot pass beyond the Wall.
Jon Snow's parentage is as of yet unconfirmed in the books.
Sam waits for hours until he is admitted to speak with the archmaester. He is first approached by a novice named Alleras, who is interested in hearing Sam's story, then is taken to the archmaester.
No one inquires Sam about the current Lord Commander of the Night's Watch.
After the siege of Riverrun is resolved, Edmure is sent to Casterly Rock, not back to the Twins.
Members of the Faith Militant are not required to carve the seven-pointed star onto their foreheads. It is sufficient for them to paint the star on their brows or sew a badge of it to their clothes. Only the zealous among them carve the star into their chests, not their foreheads.
Arianne Martell, not Olenna, asks her father, "What is our heart’s desire?" Doran, not Ellaria and Varys, answers, "Vengeance, justice, fire and blood."
Daario is the commander of the Stormcrows, not the Second Sons.
Sansa never came to the godswood to pray to be somewhere else.
Davos never said he loved Shireen like she was his own daughter.
Littlefinger never stated he wanted the Iron Throne. His plans, as far as he revealed to Sansa, are to take over the Vale and Winterfell by marrying her to Harrold Hardyng.
Cersei has the Tower of the Hand, not the Great Sept of Baelor, destroyed by wildfire. It happens towards the beginning of A Feast for Crows; no one is harmed as a result.