His children were Tomotsuna KUTSUKI, Yoshitsuna KUTSUKI, Mototsuna KUTSUKI (same name as his father), and his daughters became Yoshitada OSHIMA's wife, Kaikyu OKAMOTO's wife, Soji KAWAGUCHI'S wife, and Dokaku KORAI's wife.
子に朽木智綱、朽木良綱、朽木元綱（父と同名）、大島義唯室、岡本介球室、川口宗次室、高麗道覚室。