He was a close associate of Emperor Ninmyo from when he was still the Togu (the Crown Prince), participated as Sahyoe no Kami (Captain of the Left Division of Middle Palace Guards), assigned with the Sangi (Royal Advisor) post in 844, and became the Gon Chunagon (Provisional Middle Counselor) with the Junii rank (Junior Second Rank).
仁明天皇が東宮（皇太子）であったころに近侍し、左兵衛督を経て、844年（承和(日本)11年）に参議となり、従二位権中納言に至る。