House Tully is one of the Great Houses of Westeros in the fictional world of A Song of Ice and Fire. Their ancestral seat is Riverrun, located at the confluence of the Red Fork and Green Fork rivers. The house is known for its sigil, a silver trout on a blue and red field, symbolizing their connection to water and the riverlands. The motto of House Tully is "Family, Duty, Honor," reflecting their values and commitment to kinship. They play a significant role in the political landscape of the Seven Kingdoms, particularly during the War of the Five Kings, where their alliances and decisions greatly impact the outcome of the conflict.