His date of death is not known, however, it seems that he had already died as of January, 1017 (the article of December 10, 1016 in"Nihon Ryakki" (Summarized chronicle of Japan)).
没年は不詳だが、長和5年（1016年）12月にはすでに卒去していたらしい（『日本紀略』長和5年12月10日条）。