Accordingly, even an empress was not recognized as part of the Koshin if she had come from a subject's household, as seen with Empress Komyo (Fujiwara clan), whereas one who married into a subject's household could still be conferred a court rank, as with Imperial Princess Teishi who was conferred the second court rank after she had married FUJIWARA no Norimichi (Chapter December 19, 1041, "Fuso Ryakki" [A Brief History of Japan]).
従って、光明皇后（藤原氏）のように、皇后であっても臣下の家の出身者は皇親とは認められず、逆に藤原教通室となった禔子内親王の様に臣下に降嫁後に二品叙位を受けた例も存在する（『扶桑略記』長久2年12月19日条）。