He was awarded the title Sadaijin (Minister of the Left) in 947 when Emperor Murakami ascended the throne, and at the same time his brother Morosuke was appointed Udaijin (Minister of the Right).
村上天皇が即位した天暦元年（947年）に左大臣を拝し、同時に弟の師輔は右大臣に任ぜられた。