Sonno returned from Ninna-ji Temple in August, whereupon he was ordered to become the crown prince and adopt the name 'Morihito' in September; he then had a coming-of-age ceremony in December and in March of the following year, he married Princess Shushi, as a result of which he had the complete support of Princess Shushi's father, Bifuku mon in.
8月仁和寺から戻った孫王は、9月親王宣下を蒙り「守仁」と命名され即日立太子、12月に元服、翌年3月には美福門院の皇女・しゅ子内親王を妃に迎えるなど、美福門院の全面的な支援を受けた。