The bakufu asked Omiyain, who was the first wife and biological mother of Gofukakusa and Kameyama, which of the sons was the deceased choice and Omiyain gave Kameyama's name, who was subsequently named as Chiten.
幕府は、後嵯峨の正妻であり後深草と亀山の生母でもある大宮院に故人の真意がどちらにあったかを照会し、大宮院が亀山の名を挙げたことから亀山を治天に指名した。