When Shigeko became Nyogo (court lady), queen mother and Nyoin (a woman who received "Ingo (a title of respect given to close female relatives of the Emperor or a woman of comparable standing)), Munemori always served Shigeko consistently as Keishi, Kotaigo-gu Gon-taifu or Nyoin-Betto (the attendant to Nyoin) respectively and took her younger sister, Kiyoko (Naishi no suke (vice minister of Naishi no tsukasa) to Emperor Takakura; called Chunagon-sanmi) as his wife.
滋子が女御・皇太后・女院になった際には、家司・皇太后宮権大夫・女院別当となるなど一貫して滋子の側に仕え、妻に滋子の妹・清子（高倉天皇の典侍、中納言三位）を迎えている。