During the Edo period, Shosetsu YUI, who was the catalyst of Keian Incident, learned military science from Masatatsu (or Fuden) KUSUNOKI and became the husband of his daughter.
江戸時代には、慶安の変を起こした由井正雪が正虎の子という楠木正辰（楠木不伝）に軍学を学び、正辰の娘婿となった。