He was a brother of MINAMOTO no Mitsunobu, MINAMOTO no Mata, etc., and his children were MINAMOTO no Mitsumune, Tosa no Tsubone (Lady of Tosa), and MINAMOTO no Shigeko (Bomon no Tsubone (Lady of Bomon)).
兄弟に源光信、源全らがあり、子に源光宗、土佐局、源重子（坊門局）らがある。