1926 Event Prince-regent Hirohito becomes emperor of Japan 1923 Event Unsuccessful attempt on prince-regent Hirohito of Japan 1922 Event Japanese crown prince Hirohito appointed prince-regent 1914 Event King Peter I of Serbia names son Alexander the Prince-regent 1912 Death Luitpold von Bayern, prince-regent of Bayern, dies at 91 1821 Birthday Luitpold von Bayern, Prince-regent of Bayern
