The first Princess: Imperial Princess Rishi (Shikikenmonin) (1197 - 1251) - Saigu (an unmarried princess who, in former times, was sent by the emperor to serve at Ise Shrine), Emperor Shijo's Junbo (equivalent rank to Emperor's birth mother)
第一皇女：利子内親王（式乾門院）（1197-1251）-斎宮、四条天皇准母