Martyn Cassel is a member of House Cassel. He is the father of Jory Cassel. He was a proud man. He is the brother of Ser Rodrik Cassel. He fathered four sons, but only Jory lived to be a man. He fought alongside Lord Eddard Stark during Robert’s Rebellion, dying at the Tower of Joy during a battle with three of the Kingsguard.