There is a famous anecdote in "Nihonshoki" (Chronicles of Japan) that when Anahobe no hashihito no himemiko was the empress of the Emperor Yomei, she gave birth to the Prince Umayado (the Prince Shotoku) at Umaya no toguchi (a door of a stable).
用明天皇の皇后であった時に、厩の戸口で厩戸皇子（聖徳太子）を出産したという『日本書紀』の逸話は有名だ。