It is said that he got along well with Iemochi, the 14th shogunate, while Iemochi had the closest relationship with Mochitsugu, and at the same time, Mochitsugu respected Iemochi.
14代将軍・家茂とは気が合ったらしく、家茂が最も親しく交わりを結んでいたのが茂承であったのと同時に、茂承は家茂を慕っていたという。