House Frey of Riverrun is a new noble house and a new cadet branch of House Frey of The Twins. It was created after House Tully was stripped of their property for rebelling against the Iron Throne. The Lord of House Frey of Riverrun is Emmon Frey, a son of Walder Frey. He is married to Genna Lannister, and they have two living children. Tywin Frey is the heir to House Frey of Riverrun.