In view of the fact that only Tamemitsu was confirmed as a person on whom a peerage was conferred during this period among descendants of MINAMOTO no Mitsuyoshi, it is presumed that he was active in Kyoto as a direct descendant of Mitsuyoshi.
この時期に源満快の後裔で叙爵が確認される者は為満のみであることから、満快の嫡流として都で活動していたことが推察される。