國學院大學
In 1881, he resigned from his political posts and became head of the newly established Research Institute for Japanese Classical Literature ("Kōten Kōkyūsho"), the forerunner of Kokugakuin University). The prince was a master of "waka" poetry and Japanese calligraphy. The official copy of the Meiji Charter Oath was in his handwriting, and he supplied many inscriptions for various Buddhist temples and Shinto shrines. His pen-name was Shōzan.