Mikushigedono: Originally a nyokan served at the 'Mikushirodono' (a place to prepare the wardrobe of an emperor) but changed the meaning later to a mikushigedono who served in the emperor's bedroom and was elevated to the position of a consort next to koi.
貞観殿（みくしげどの）…本来は「御匣殿」詰めの女官であったが、後に天皇の寝室にも奉仕して更衣に次ぐ地位の配偶者に改められた。