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Konrad Eubel orConradus Eubel (19 January 1842 – 5 February 1923) was a GermanFranciscan historian. He is known for his reference work, theHierarchia Catholica Medii Aevi, on medieval popes, cardinals and bishops. It appeared in three volumes, beginning in 1898. It covers the period 1198 to 1592, and is a more detailed version of theSeries episcoporum Ecclesiae Catholicae byPius Bonifacius Gams.
Under the title of theHierarchia Catholica Medii et Recentioris Aevi the work has continued and now stands at nine volumes covering the period from 1198 to 1922.
Other works include a Franciscanbullarium.