There’s a story in the Edo period penned “Biography of Kiyomasa Kato” that tells of the time Kato Kiyomasa is said to have visited Lord Ishikawa (Gemba) Yasunaga, (the son of Ishikawa Kazumasa, famed for having long been a close confidante of Tokugawa Ieyasu, only to inexplicably turn and join the rival warlord Toyotomi Hideyoshi in 1585) on the completion of Yasunaga’s fine Matsumoto Castle keep.