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[[image:LeoSt_Leo_the_great.jpg|right|thumb|St Leo the [[bishop]] of Rome.]]Our father among the saints, '''Pope Leo I''', or Saint '''Leo the Great''', was an aristocrat who was [[Pope]] of [[Church of Rome|Rome]] from 440 to 461. He is the first widely known pope, and even sometimes assigned the title "first pope." He stopped the invasion of Italy by Attila the Hun in 452 by his moral persuasion, and was a [[theologian]]. His [[feast day]] is commemorated on [[February 18]].