Martyn Lannister is a character in the third season. Along his brother Willem, he's a squire in the Lannister army. Both are younger sons of Ser Kevan Lannister, and younger brothers of Lancel Lannister.
He is fifteen years old in Season 3.
Martyn, along with his brother Willem, is captured by the forces of House Tully led by Edmure Tully following the Battle of Stone Mill. He's 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 in silence. Martyn asks if its true that Robb can turn into a wolf at night and devours the flesh of his enemies.
|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|
In the books
In the A Song of Ice and Fire novels, Martyn and his twin brother Willem are twin sons of Ser Kevan 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.
- Martyn Lannister at A Wiki of Ice and Fire (spoilers from the books)
|Lord:||Lord Tywin Lannister||Heir:||Tyrion Lannister (disputed)|
|Seat:||Casterly Rock||Lands:||The Westerlands|
|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 · Loren Lannister|
|Current members:||Kevan Lannister · Cersei Lannister · Jaime Lannister · Dorna Lannister · Lancel Lannister · Cynda Lannister · Sansa Stark|
|Deceased members:||Tytos Lannister · Joanna Lannister · Stafford Lannister · Alton Lannister · Martyn Lannister · Willem Lannister|
|Household:||Podrick Payne · Bronn · Gregor Clegane · Amory Lorch · Polliver · Rorge · Biter|
|Overlord:||House Baratheon of King's Landing|