Tokugawa Yoshinao was the ninth son of Tokugawa Ieyasu, and is considered the founder of the Owari Tokugawa clan. Yoshinao’s mother was a certain Okane. He was given his late elder brother Tadayoshi's Owari fief and an income of 601,000 koku. He became the head of the Owari Tokugawa, one of the three gosanke houses/lineages established by his father Tokugawa Ieyasu to provide heirs to the main line should the latter require one. Like his two younger brothers, Yorinobu and Yorifusa, Yoshinao enjoyed his father’s favor.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005