Kitanosho Castle was the stronghold of Shibata Katsuie, ruler of Echizen Province. In 1583, Katsuie was defeated here by Toyotomi Hideyoshi at the Battle of Shizugatake, and it became the site of his final stand: he and his wife, Lady Oichi, set the keep ablaze and took their own lives in a dramatic end. With this victory, Hideyoshi further consolidated his position as Nobunaga's successor.