Emperor Shijō
Emperor Shijō (1231–1242), the 87th emperor of Japan, came to the throne in 1232 at barely two and was left an infant sovereign by his father Emperor Go-Horikawa's death in 1234. His maternal grandfather Kujō Michiie then ran court affairs under the Kamakura shogunate.
A mischievous boy, he died at ten after slipping on talcum powder he had scattered in a palace corridor to make attendants fall, leaving the succession in dispute.