Konrad Eubel or Conradus Eubel was a German Franciscan historian. He is known for his reference work, the Hierarchia Catholica Medii Aevi, on medieval popes, cardinals and bishops. It appeared in three volumes, beginning in 1898. Wikipedia
Born: January 19, 1842, Sinning, Oberhausen, Germany
Died: February 5, 1923 (age 81 years), Würzburg, Germany