Humanities › History & Culture Pope Leo III Share Flipboard Email Print Pope Leo III. Public Domain History & Culture Medieval & Renaissance History People & Events Daily Life American History African American History African History Ancient History and Culture Asian History European History Genealogy Inventions Latin American History Military History The 20th Century Women's History View More By Melissa Snell Melissa Snell History Expert B.A., History, University of Texas at Austin Melissa Snell is a historical researcher and writer specializing in the Middle Ages and the Renaissance. She authored the forward for "The Complete Idiot's Guide to the Crusades." Learn about our Editorial Process Updated on June 03, 2017 Pope Leo III was also known as: Charlemagne's Pope Pope Leo III is noted for: crowning Charlemagne Emperor and establishing the precedent that only the pope could confer the imperial crown. Leo was also physically attacked in the streets of Rome by supporters of his predeccessor. Occupation & Role in Society: PopeSaint Places of Residence and Influence: Italy Important Dates: Elected pope: Dec. 26, 795Attacked: April 25, 799Died: June 12, 816 About Pope Leo III: Rather than keeping the papacy independent of secular authorities, Leo deliberately took steps to ally with Charlemagne and his growing empire. Attacked in the streets of Rome by supporters of his predecessor's nephew, Leo sought the aid of Charlemagne and eventually crowned him emperor, establishing an important precedent. As pope, Leo was adept in diplomacy and managed to keep his Carolingian allies from exerting any real influence on matters of doctrine. He died in 816. For more about Leo, visit your Guide's Concise Biography of Pope Leo III. More Leo III Resources: Concise Biography of Pope Leo IIIImage of Leo crowning Charlemagne Leo III on the Web Pope St. Leo III Fairly substantial bio by Horace K. Mann at the Catholic Encyclopedia. Pope Saint Leo III Concise collection of useful data, heavily hyperlinked, at the Patron Saints Index. Leo III in Print The links below will take you to a site where you can compare prices at booksellers across the web. More in-depth info about the book may be found by clicking on to the book's page at one of the online merchants. by Richard P. McBrienby P. G. Maxwell-Stuart Chronological Index Geographical Index Index by Profession, Achievement, or Role in Society Cite this Article Format mla apa chicago Your Citation Snell, Melissa. "Pope Leo III." ThoughtCo, Aug. 26, 2020, thoughtco.com/pope-leo-iii-profile-1789101. Snell, Melissa. (2020, August 26). Pope Leo III. Retrieved from https://www.thoughtco.com/pope-leo-iii-profile-1789101 Snell, Melissa. "Pope Leo III." ThoughtCo. https://www.thoughtco.com/pope-leo-iii-profile-1789101 (accessed May 30, 2023). copy citation