His father Yoshitada, Shugo of Suruga Province, is believed to have married his mother, Kitagawa-dono, when he joined forces with the Eastern Army in Kyoto during the Onin War.
父の駿河国守護義忠が応仁の乱で東軍に味方して上洛していたときに、母の北川殿と結婚したと思われる。