Martyn Rivers
Martyn Ríos
Martyn Rivers is a bastard son of Lord Walder Frey, master of the Twins. He carries the surname Rivers, given to bastards born in the riverlands, and so stands apart from his father's enormous brood of trueborn children.
He is one of the Freys whose path crosses that of King Robb Stark during the war Robb wages for the north, first at the Twins and later at Riverrun.
Chapter 1
The ruddy bastard
Books only
Martyn is described as ruddy-faced, unlike other members of his house. He attends the Tourney of the Hand together with five other kinsmen of House Frey.
He is at the Twins when King Robb Stark's host arrives at his father's seat.
Chapter 2
In command of the scouts
Books only
While Ser Brynden Tully accompanies King Robb Stark in the westerlands, Martyn is left in command of the scouts watching over the riverlands.
Chapter 3
Leaving Riverrun
Books only
Catelyn Tully recognizes him among the Freys leaving Riverrun after news of King Robb's marriage reaches the castle.