Another version holds that his mother was a younger sister or niece of Mitsuhide AKECHI; however, this is biologically impossible in light of the age difference between Mitsuhide (born in 1528) and Toshimitsu (born in 1534).
母を明智光秀の妹、光秀の姪にあたるとする説もあるが、光秀（1528年生れ）と利三（1534年生れ）の年齢差から生物学上ありえない。