It is unclear why Mitsunaka who searched and captured the family of FUJIWARA no Hidesato accepted Nakamitsu who was a direct descendant of Hidesato as roto (retainer), however, after 'Incident of Bijomaru and Kojumaru' which had happened between MINAMOTO no Mitsunaka and FUJIWARA no Nakamitsu, Nakamitsu apparently contributed to the early development of Seiwa-Genji (Minamoto clan originated from Emperor Seiwa), for example, having been 主代殿 of Tada-in Shrine after Mitsunaka had retired.
藤原秀郷の一族を追捕している満仲が、なぜ秀郷の嫡流である仲光を郎等にしたのかは不明だが、源満仲と藤原仲光との間に起きた「美女丸・幸寿丸の事件」を機に、満仲が隠居した後、仲光は多田院の主代殿となるなど、初期清和源氏の発展に貢献したとされる。