Because of that, he kept being the central figure in the government through the Palace Disturbance, without got involved in the incident like FUJIWARA no Sadakazu nor being suspected like Mototsuna GOTO; also his son NAKAHARA no Morotsura was active as the Intendant of the Shogunal Palace for Prince Munetaka and a member of the Council of State, established the family line as the family inheriting secretary official positions in the center of the government and as to be called the Settsu clan at the end of the Kamakura period.
そのため宮騒動においても、藤原定員のように連座することも、後藤基綱のように警戒されることもなく、政権中枢であり続け、子の中原師連も宗尊親王の御所奉行、評定衆として活躍し、その家系は鎌倉時代末期には摂津氏と呼ばれて幕府中枢の事務官僚を世襲した。