He served the Emperor Daigo and took part in the FUJAWARA no Tokihira's government and, reportedly, he was involved in compiling Engishiki (codes and procedures on national rites and prayers) and the Shotai Incident (purge of SUGAWARA no Michizane).
醍醐天皇に仕えて藤原時平政権に参加、延喜式編纂や昌泰の変（菅原道真の追放）などに関わったとされる。