In the cloistered government period, collateral lines such as MINAMOTO no Kunifusa (Akikuni's uncle) and MINAMOTO no Nakamasa (Akikuni's younger brother) served as the cloistered emperor's army while the line of Akikuni who inherited Tada Manors, the estates owned by the regent family, did not join the cloistered emperor's army and continued to be a private army for the regent family through the generation of Tada Yukitsuna (a grand-grand son of Akikuni).
院政期に至ると庶流の源国房（明国の叔父）の系統や源仲政（明国の弟）の系統が北面武士などとして院に伺候したが、摂関家領である多田荘を継承した明国の系統は多田行綱（明国の曾孫）の代に至るまで院北面とはなっておらず、代々摂関家の私的武力としての性格を持ち続けた。