Willem Lannister: "Is this a rescue?"
Rickard Karstark: "Lannister filth!"
Martyn Lannister: "Please, I didn't do anything! I'm just a squire!"
— Martyn Lannister begs for his life as Lord Rickard Karstark runs him through with a sword.[src]

Martyn Lannister, along with his brother Willem, was a squire in the Lannister army. Both are younger sons of Kevan Lannister, and younger brothers of Ser Lancel Lannister.


Season 3

Martyn and his brother Willem are captured by the forces of House Tully led by Edmure Tully following the Battle of Stone Mill. He is taken hostage and placed in a cell at Riverrun, the seat of the Tullys.

After Robb Stark visits Riverrun to attend the funerals of Lord Hoster Tully, Martyn and Willem are visited in their cell by Queen Talisa Stark, who tends to Martyn's wounded hand while Willem looks on in silence. Martyn asks if it's true that Robb can turn into a wolf at night and devour the flesh of his enemies.[1] Earlier, Robb criticized Edmure Tully for the Battle of the Stone Mill and concludes that Willem and Martyn are not valuable enough to exchange for Sansa or Arya Stark.

Martyn and Willem are murdered inside their cells by Lord Rickard Karstark as vengeance for Jaime Lannister's killing of his son, Torrhen Karstark. Their bodies are presented to Robb, and as Rickard defends his actions as them being kin to Jaime, Robb furiously condemns this as saying they were innocent boys.[2]

Family tree

Tytos Lannister

Jeyne Lannister
née Marbrand
Tywin fam tree
Tywin Lannister
Joanna Lannister
Kevan fam tree
Kevan Lannister
Dorna Lannister
née Swyft
Robert tree
Robert Baratheon House-Baratheon-Main-Shield
Cersei family tree
Cersei Lannister
Jaime family tree
Jaime Lannister
Unknown tree
Tyrion Lannister
Sansa Stark House-Stark-Main-Shield
Lancel tree
Lancel Lannister Faith-Militant-Main-Shield
Martyn Lannister tree
Martyn Lannister
Willem Lannister tree
Willem Lannister
Unnamed son
Died in infancy

Joffrey Baratheon House-Baratheon-of-King's Landing-Main-Shield

Margaery Tyrell House-Tyrell-Main-Shield
Mycella Season 5 family tree pic

Myrcella Baratheon House-Baratheon-of-King's Landing-Main-Shield

Tommen Baratheon House-Baratheon-of-King's Landing-Main-Shield
Margaery Tyrell House-Tyrell-Main-Shield


Season Three appearances
Valar Dohaeris Dark Wings, Dark Words Walk of Punishment And Now His Watch Is Ended Kissed by Fire
The Climb The Bear and the Maiden Fair Second Sons The Rains of Castamere Mhysa


Edmure Tully: "We took hostages. Willem Lannister, Martyn Lannister."
Robb Stark: "Willem and Martyn Lannister are fourteen years old."
Brynden Tully: "Martyn is fifteen, I believe."
— Walk of Punishment
Robb Stark: "Tywin Lannister has my sisters. Have I sued for peace?"
Edmure Tully: "No."
Robb Stark: "Do you think he'll sue for peace because we have his...father's brother's great-grandsons?"
Edmure Tully: "No."
Robb Stark dismisses Martyn and Willem's value as hostages.[src]
Robb Stark: "It took five of you to murder two unarmed squires."
Rickard Karstark: "Not murder, your grace. Vengeance."
Robb Stark: "Vengeance? They didn't kill your sons. I saw Harrion die on the battlefield and Torrhen..."
Rickard Karstark: "Was strangled by the Kingslayer. They were his kin."
Robb Stark: "They were BOYS!"
Rickard Karstark's unsuccessful justification for killing Martyn and Willem Lannister.[src]

Behind the scenes

Martyn is played by Dean-Charles Chapman, who would go on to be cast as Tommen Baratheon in the fourth season of the television series.

In the books

In the A Song of Ice and Fire novels, Martyn and Willem are the twin sons of Ser Kevan Lannister, and younger brothers of Lancel Lannister. Martyn is captured at the Battle of Oxcross. It is not Martyn but his cousin Tion Frey who is killed with Willem by Rickard Karstark. After Willem and Tion's death, Robb ordered to triple the guard on Martyn for his protection, and later exchanged him for a northman prisoner (Robett Glover). Martyn is not mentioned in the books afterwards.

See also


v  d  e
Lord: Cersei Lannister Heir:
Seat: Casterly Rock / Red Keep Lands: The Westerlands / The Crownlands
Title(s): Lord Paramount of the Westerlands · Lord of Casterly Rock · Warden of the West · King of the Rock (pre-War of Conquest)
Ancestors:Lann the Clever · Gerold Lannister · Tommen II Lannister · Loren Lannister · Tyland Lannister · Damon Lannister
Current members:Tyrion Lannister · Jaime Lannister · Dorna Lannister · Cynda Lannister · Lyman Lannister
Deceased members:Tytos Lannister · Joanna Lannister · Stafford Lannister · Alton Lannister · Martyn Lannister · Willem Lannister · Orson Lannister · Tywin Lannister · Lancel Lannister · Kevan Lannister
Household:Bronn · Gregor Clegane · Qyburn · {Amory Lorch} · {Polliver} · {Rorge} · {Biter}