His father Kagenori became the head of the guards of the imperial tomb of Emperor Toba later, and his mother Toshiko MIYAKE served as Rojo (senior lady-in-Waiting) and Yuhitsu (private secretary) of the Arisugawanomiya family.
景則は後に鳥羽天皇の山陵長となり、母・三宅登士子は有栖川宮家の老女・祐筆を勤めた。