When Gonomiya (later Emperor Higashiyama), then having the title of Chokun (almost the same rank as the crown prince), was newly given the title of Imperial Prince between December 1682 - January 1683 (December, 1682 in old lunar calender), Mototsune was dispatched again to Kyoto as a felicitation messenger of the shogunate.
天和(日本)2年(1682年)12月、当時儲君(皇太子格)であった五宮(のちの東山天皇)に親王宣下が下された際にも幕府の慶賀の使者として京都へ派遣された。