|Book(s)|| A Clash of Kings (appears)|
A Storm of Swords (appears)
A Clash of Kings
Morros rode in the Tourney for King Joffrey's 13th Name Day, where he was unhorsed by Ser Balon Swann in the second tilt of the day. Upon his father's banishment to the Wall, Morros became a lord.
A Storm of Swords
Sansa Stark spied him getting beaten in the yard by Osfryd Kettleblack. Morros testified at the trial of Tyrion Lannister for the death of King Joffrey I that he had seen Tyrion gather the poisoned chalice off the floor and poured the remaining contents on the floor.