Kamo SERIZAWA, the descendant, who was the head of Shinsengumi in the end of Edo period was from the Serizawa clan of the upper grade country samurai of Serizawa Castle in Serizawa-mura, Hitachi Province, and had the real name of TAIRA no Mitsumoto.
幕末の新撰組の総局長だった芹沢鴨は、常陸国芹沢村の芹沢城の流れを汲む上級郷士の芹沢氏の出で、本名を平光幹（たいら・の・みつもと）といい子孫になる。