 At the time, he was called by his youth name of Matsudaira Kogorō; however, in 1751 he underwent the "genpuku" ceremony and received a character from Tokugawa Ieshige's name to become Matsudaira Shigemasa.In 1755, his court rank was Junior Fourth Rank, Upper Grade and his courtesy title was "Sakon'e-gon-shōjō" and "Echizen-no-kami".Due to his youth, he played little role in domain affairs, which were handled by his senior retainers.