For example, the Tsuruga clan of Echizen Province, the Atsuta-Daiguji family adopted a son from the Fujiwara clan and called themselves Fujiwara Ason; also they took the daughter of the Fujiwara clan in marriage and named 'Fujiwara Ason' by the maternal line; examples of other clan names and hereditary titles also exist.
たとえば、越前国の敦賀氏、熱田大宮司家らが藤原氏から養子を迎えて「藤原朝臣」を名乗ったり、それらの氏の女子をめとり母系によって「藤原朝臣」その他の氏姓を称した例もある。