Ser Marq Piper is a hotheaded knight of House Piper and a close friend of Ser Edmure Tully. He is the heir of Lord Clement Piper, and will inherit the lordship of Pinkmaiden Castle upon his father's death. He has at least on younger brother, Lewys Piper.
A Game of ThronesEdit
Marq is one of the nobles dispatched by Lord Hoster Tully to report thee actions of Ser Gregor Clegane to King Robert Baratheon. He presents his evidence to the King's Hand Lord Eddard Stark instead. Eddard dispatches a group under the command of Ser Beric Dondarrion to bring Gregor to justice. Marq either doesn't fight in, or survives, the Battle at the Mummer's Ford.
After his father is beaten at the Battle of the Golden Tooth Marq joins Ser Karyl Vance in harassing the supply train of the Lannister siege of Riverrun. It is Marq's attacks that help lure Ser Jaime Lannister away from Riverrun so that the Battle of the Whispering Wood can occur. He later sits at Robb's war council after the Battle of the Camps, proposing an alliance with king Renly Baratheon and marching on Casterly Rock, ancestral seat of House Lannister.
A Storm of SwordsEdit
Marq and Karyl are both amongst the nobles who cast off the funeral boat of Lord Hoster Tully. Marq then rides to the Twins to witness the marriage of Edmure and Roslin Frey. He participates in the bedding ceremony, removing Roslin's shoe. After the wedding turns into a massacre Marq is captured to use as leverage against Clement. He is held prisoner in the Twins from then on.