Mace Tyrell

"My son's a hunter. It helps him forget he's never been within a mile of a real battle."

- Olenna Tyrell

Mace Tyrell is a so-far unseen character, though he has been confirmed to debut in the fourth season. He will be played by Roger Ashton-Griffiths.

Mace Tyrell is the Lord of Highgarden and head of House Tyrell. He initially supported Renly Baratheon's claim on the Iron Throne in the War of the Five Kings.

Background
Mace Tyrell is the Lord of Highgarden and head of House Tyrell, one of the Great Houses of Westeros. He is the Lord Paramount of the Reach and Warden of the South. The Tyrells are one of the most powerful and richest families in Westeros, second only the Lannisters - for while the mountains of the Westerlands possess rich gold mines, the fields of The Reach are the most fertile in Westeros, capable of supporting armies almost twice the size of any other kingdom.

Mace is not considered a great strategist or general himself - his own mother Olenna openly describes him as an oaf. On the other hand, he has shown good judgement in delegating such tasks to trusted, skilled subordinates, such as the famous general Randyll Tarly, who often commands Mace's forces in battle.

Mace might not be an intelligent man, but he is an amiable fellow well-liked by his bannermen, and is a loving husband and father. Mace has one son, Loras, and a daughter, Margaery, arguably the most eligible woman in the Seven Kingdoms. Mace hopes to make a good match for her to increase the already considerable power and influence of his family.

During Robert's Rebellion, Mace and House Tyrell stayed loyal to House Targaryen. The Tyrells owed their rule over Highgarden and the Reach to the Targaryen kings, who after the Targaryen Conquest three centuries before had awarded rule of the Reach to the Tyrells ahead of other families from the region which actually had better claims (such as House Florent). The Tyrell armies were able to inflict the only defeat that Robert Baratheon suffered during the entire war at the Battle of Ashford. Afterwards, Mace's massive army moved east to lay siege to the mighty castle-seat of the Baratheons, Storm's End. The Siege of Storm's End lasted the better part of a year, while Mace and his commanders feasted in sight of the starving garrison led by Robert's younger brother Stannis. Ultimately Stannis' determined defense held, and the siege only succeeded in pinning down Mace's army and preventing it from assisting the Targaryens in the climactic battles occurring further north. After the Sack of King's Landing, Eddard Stark rode south with the main rebel army to relieve the siege. With the capital city in rebel hands, and both Prince Rhaegar Targaryen and his father Mad King Aerys dead, Mace saw that the war was clearly lost and gave no battle to Lord Eddard. Instead he peacefully dipped his banners and submitted to Robert's rule, and in return was treated leniently, pardoned, and allowed to continue ruling the Reach as his family had before the war. However, ever since there was never any great love between Mace Tyrell and Stannis Baratheon.

Season 1
Ser Loras tells Renly that his father would support Renly's claim to the Iron Throne. Renly rejects the notion, pointing out he is fourth in line to the throne, but Loras explains that he could fight for Renly and his father would bankroll their armies. Renly seems more intrigued by the notion and later accepts the plan, though he fails to win the support of Lord Eddard Stark. Along with Loras, Renly flees the city of King's Landing and heads south towards the Tyrell homelands. It is later reported that Renly has been crowned king, with the full support of Lord Mace Tyrell and his forces.

Season 2
Davos Seaworth mentions to Stannis Baratheon that Lord Mace is amongst the many lords that have declared for Renly Baratheon.

After Renly's death, the Tyrells enter into a new alliance with King Joffrey and House Lannister, instead of siding with Renly's brother Stannis, who is correctly suspected of having something to do with Renly's death.

Season 3
Lord Mace is mentioned by his mother, Lady Olenna Tyrell, in conversation with Sansa Stark. She describes him as "a ponderous oaf" who rushed into a treasonous alliance with Renly and a dangerous one with the Lannisters just to see his daughter become queen.

Lady Olenna mentions him again some weeks later when in the Great Sept of Baelor with Cersei. She says that Mace enjoys hunting because it hides the fact that he's never been in a real battle. Cersei expresses surprise, as Lord Mace is well known to have besieged Storm's End for over a year during Robert's Rebellion. Lady Olenna dismisses her son's role, as "all he laid siege to was the banquet table in the command tent."

In the books
In the A Song of Ice and Fire novels, Lord Mace Tyrell is described as hungry for power and something of a braggart, claiming the victory of Randyll Tarly over Robert Baratheon in the Battle of Ashford as his own, even though the battle was over before he even arrived. Mace is not particularly intelligent - his own mother describes him as an oaf - and may be more of a figurehead for the more intelligent and scheming members of his family (usually his mother). He is handsome and a once powerful looking man, but has since turned to fat. Nonetheless, he is a kind ruler and loving father, resulting in him being well-liked and respected by his children and his subordinates in the Reach.

During the early stages of the War of the Five Kings, Mace Tyrell is named Hand of the King by Renly Baratheon.

The books never make it explicitly clear if Mace ever realized that his son Loras is a homosexual. However, he is noted for being unperceptive, so there is a strong probability that he doesn't know.