Riverrun
Riverrun is the three-sided castle of House Tully at the meeting of the Tumblestone and the Red Fork in A Game of Thrones, seat of Hoster Tully, Lord Paramount of the Trident, and the childhood home of Catelyn Stark.
Where the Tumblestone runs into the Red Fork, Riverrun stands as the seat of House Tully, and it is the childhood home of Catelyn Stark. The castle is a three-sided stronghold with rivers on two faces and a wide dug ditch on the third; in times of danger its sluice gates can be opened to flood the moat and turn Riverrun into an island, all but unassailable. Its lord is Hoster Tully, Lord Paramount of the Trident, father of Catelyn, of Lysa Arryn, and of his heir Edmure. Boats pass from the river directly into the castle through its Water Gate. The Tully words are Family, Duty, Honor, and the riverlords of the Trident are sworn to Riverrun.
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