Baron Wilhelm Emmanuel von Ketteler was a German theologian and politician who served as Bishop of Mainz. His social teachings became influential during the papacy of Leo XIII and his encyclical Rerum novarum. Wikipedia
Born: December 25, 1811, Münster, Germany
Died: July 13, 1877 (age 65 years), Burghausen, Germany
Organization founded: Congregation of Divine Providence, Mainz
Education: Ludwig Maximilian University of Munich