Since Yamakage is also affililated with the Uona Line (FUJIWARA no Washitori branch) but belongs to a school different from that of the Shijo family (FUJIWARA no Sueshige branch), Yamakage is not a direct ancestor of the Shijo family in the family tree (for further details, also refer to a family tree of each line of the Northern House of the Fujiwara clan).
なお、山蔭も魚名流（藤原鷲取系）であるが、四条家（藤原末茂系）とは別流であり、系譜的には直系ではない（詳細は藤原北家の各流系図を参照）。