In 1409 Yoshisuke ARIMA, the fifth son of Norisuke AKAMATSU who was Ujinori's older brother, became the ruler of Arima County and started calling himself the Settsu Arima clan.
1409年（応永16年）　氏範の兄である赤松則祐の五男・有馬義祐が有馬郡を領有し摂津有馬氏を名乗るようになる。