Build by Entharion the Wise back in the foundation of the Kingdom of Quendor. Located on the coast of Frobozz, at the western shore of the Great Sea, east to the Lonely Mountain, a local village, and the Old Lingolf House near the ancient cities of Galepath and Mareilon Krill's control over Largoneth ended in the tenth century, when a novice magician defeated at his stronghold in the castle.