The Kamachi clan are also considered descendants of the Watanabe branch of the Matsuura clan because they later adopted MINAMOTO no Tsubura of the Matsuura clan as a husband, thereby becoming one family,
蒲池氏は後に松浦氏から源圓を婿養子を迎えて同族化したため渡辺党松浦氏の後裔ともされる。