House Grefford

House Jest is a large Ostrogothic Household located within the Kingdom of Lucerne, and dominating the large town of Dreghortin which gives them the title of Grand Lord of of the province of Eastern Castamere. House Jest is the banner house of House Lannister of whom they have remained loyal to even through the Civil War in Castamere which has led them to become quite influencial at court in Lannistane.