From September to November 1190, Moritsuna who accompanied Yoritomo on his going to Kyoto also accompanied Yoritomo on his visit to the Imperial Palace, to Iwashimizu Hachiman-gu Shrine, and so on.
9月から11月、頼朝に従い上洛し、院への参上や石清水八幡宮への参拝などに随行する。