The family line was characterized by 'the family of an aide to the shogun,' but from the generation of Chikamune SETTSU, a son of NAKAHARA no Morotsura, the family changed its name from NAKAHARA to FUJIWARA.
その家系は「将軍側近の家」との性格をもっていたが、師連の子の摂津親致の代から中原性を藤原性に改性した。