In "Chokusen Sakusha Burui" (a list of the anthologists who compiled the Imperial collections of waka poems), it said he died in 958 when he was 45 years old (same as "Sonpi Bunmyaku"), although it was said he was born in 914, in any case, he was decided to be born before the eldest son, Mitsunaka.
また、『勅撰作者部類』には958年に同じ45歳で卒去したとある事から914年生れとされているが、いずれも長男・満仲より後に生まれた事になる。