There is a phrase '織田伊勢入道所労以外聞' (=It is rumored that Oda Ise Nyudo is sick) in one document, which phrase indicates that he was taken with illness around 1428.
「織田伊勢入道所労以外聞」とあり、正長元年（1428年）頃、常松は病に侵されたとされる。