Leonhard Ennen

| birth_place = Schleiden, Euskirchen, Germany | death_date = | death_place = Cologne | resting_place = | occupation = Archivist, Historian | language = German | education = Ph.D. | alma_mater = University of Münster
University of Bonn | period = 19th century | genre = History | subject = Archdiocese of Cologne
Electorate of Cologne
City of Cologne | movement = | notableworks = ''Geschichte der Stadt Köln'' (1862–1879) (5 volumes)
''Quellen zur Geschichte der Stadt Köln'' (1880–1889) | spouse(s) = | partner(s) = | children = | relative(s) = | awards = | signature = | signature_alt = | website = | portaldisp = }}

Leonhard Ennen, also spelled Leonard Ennen, (5 March 1820 – 14 June 1880) was a German theologian, historian and archivist born in Schleiden, in the Eifel region of modern-day Germany. He is remembered for his writings on the history of Cologne. Provided by Wikipedia