Since Imperial Prince Taruhito was the oldest son in Arisugawa no Miya family, Sawanomiya was decided unofficially to enter into the Myoho-in Temple and become a priest-prince when he reached the appropriate age, following the custom of the Imperial family.
有栖川宮家にはすでに熾仁親王という嫡子がいたため、稠宮は親王家の慣例に従い、然るべき年齢に達した後に妙法院の門跡となることが内定した。