Although Emperor Reizei had married his Empress, Imperial Princess Shoshi, while he was Crown Prince, she was afraid of his insanity, stayed away from him, and therefore, had no child with him.
冷泉天皇の後宮には皇太子時代から正妃昌子内親王がいたが、狂気の夫帝を恐れて近づかなかった昌子内親王は子をもうけることもなかった。