In addition, Ujimitsu's son Ujioki became a Hatamoto (direct retainer) of the Tokugawa Shogunate, and was conferred a territory of more than 2,000 koku crop yield in Kazusa Province, and in the Hoei era, when the clan was holding the position of Ongoku-bugyo (the collective name if the magistrates placed at important areas directly controlled by the government in the Edo period) in the generation of Noritada, he recovered the sei (authentic surname) of Akamatsu, and after that, the family persisted as Hatamoto with a stipend of more than 5,000 koku crop yield until the end of the Edo period.
氏満の子の氏置は徳川家の旗本となり上総に2千石余を得て、宝永年間の遠国奉行・範恭の代に赤松姓に復して5千石余の旗本として幕末まで存続。