However, the Misono and Kasahara clans are his descendant clans, and the Prince Sakai, who was his fifth generation descendant, received the surname of Kiyoharu in 862 (some state that the year was 865) and descended to subject status.
だが、三園氏・笠原氏等の後裔氏族が知られ、また5代孫の坂井王は862年（貞観(日本)4年）に清春氏を賜姓されて臣籍降下している（一説に865年とも）。