Papa Leo IV

Papa Leo IV, O.S.B. alikuwa Papa kuanzia mwezi Januari au tarehe 10 Mei 847 hadi kifo chake tarehe 17 Julai 855https://www.vatican.va/content/vatican/en/holy-father.index.html#holy-father. Alitokea Roma, Lazio, Italiahttps://www.vatican.va/content/vatican/en/holy-father.index.html#holy-father.

Alimfuata Papa Sergio II akafuatwa na Papa Benedikto III.

Kutokana na uvamizi na uharibifu wa Roma uliofanywa na Waarabu, aliimarisha boma la mji na kulipanua hadi kandokando ya VatikanoGregorovius, Ferdinand. History of the City of Rome in the Middle Ages, vol. 3, (Annie Hamilton, tr.), 1903 ch. III "The Leonine City" pp 95ff., alikarabati makanisa kadhaa, yakiwemo Basilika la Mt. Petro na Basilika la Mt. Paulo, halafu alihamasisha falme za Kikristo kupambana naoPierre Riche, The Carolingians:A Family who forged Europe, transl. Michael Idomir Allen, (University of Pennsylvania Press, 1993), 175..

Mwaka 849, meli za Kiislamu zilipokaribia pwani ya Italia ya Kati, alihamasisha jamhuri za kibahari za Napoli, Gaeta na Amalfi kuungana dhidi ya hatari hiyo mpya. Mapigano ya Ostia yalileta ushindi mkubwaMann, Horace. "Pope St. Leo IV." The Catholic Encyclopedia Vol. 9. New York: Robert Appleton Company, 1910. 23 September 2017The Battle of Ostia was one of the most famous in history of the Papacy of the Middle Ages and is celebrated in a famous fresco by Raphael and his pupils in his rooms of the Vatican Palace in the Vatican City. . 

Pamoja na kulinda mji wa Roma, alitetea mamlaka ya Papa kwa mwandamizi wa Mtume Petrohttps://www.santiebeati.it/dettaglio/63225

Kanisa Katoliki linamheshimu kama mtakatifu. 

Sikukuu yake ni tarehe 17 JulaiMartyrologium Romanum.

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Maandishi yake
Opera Omnia katika Patrologia Latina iliyotolewa na Migne pamoja na faharasa

Tanbihi

Marejeo
Cheetham, Nicolas, Keepers of the Keys, New York: Charles Scribner's Sons, 1983. ISBN 0-684-17863-X

 Viungo vya nje 
Papa Leo IV katika Kamusi Elezo ya Kikatoliki
 Colonnade Statue in St Peter's Square

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