He became the chief priest of Nara Ichijo-in Temple, after he received the title Prince by Imperial order, he became a priest and the priest-prince of Shoren-in Temple, he was the head priest of the Tendai sect of Buddhism and named as the monk-Prince Sonyu.
奈良一乗院の門主となり、親王宣下の後、出家して京都青蓮院門跡となり、天台座主を兼ね尊融入道親王と称した。