| 1. | Sadaaki was the adopted heir of Matsudaira Sadamichi, the descendant of Sadatsuna, the third son of Hisamatsu Sadakatsu (1569–1623), who was Tokugawa Ieyasu's brother. Sadaaki est l'héritier adoptif de Matsudaira Sadamichi, le descendant de Sadatsuna, le troisième fils de Hisamatsu Sadakatsu (1569-1623), frère d'Ieyasu Tokugawa. |