Pope Pius IX

Pope Pius IX was head of the Catholic Church from 1846 to 1878. His reign of 32 years is the second longest of any pope in history, behind that of Saint Peter. He was notable for convoking the First Vatican Council in 1868 and for permanently losing control of the Papal States in 1870 to the Kingdom of Italy. Thereafter, he refused to leave Vatican City, declaring himself a "prisoner in the Vatican".

13 May 1792

Born on the same birth day (13 May): Alexander Nevsky • Darius Rucker • Enrique Bolaños • Inge Lehmann • Iwan Rheon • Jody Conradt • Juris Alunāns • Ken Darby • Lasse Berghagen • Luciana Berger • Lydia Williams • Marv Wolfman • Oskar Rosenfeld • Prince Carl Philip, Duke of Värmland

Born in the same month (May 1792): Gaspard-Gustave de Coriolis