He was in fact, said to be distantly-related as 'the child of a younger sister of Yoshimasu ITO, who was the husband of the niece (the daughter of Fusamoto ICHIJO) of Sorin OTOMO.'
事実、彼は「大友宗麟の姪（一条房基子女）の夫である伊東義益の妹の子」という遠縁の関係にあった。