Tatsuto NUKI wrote (in 'Was the wife of Yoshiyasu ICHIJO Yoritomo's sister younger than he? This theory is considered again,' "Kamakura" 84, published in 1997) that he placed importance on the death year written in "Azumakagami" and followed it.
貫達人（「再び一条能保室は源頼朝の妹か」『鎌倉』84、1997年）は『吾妻鏡』に書かれた享年を重視し、それに従うとする。