Pope
Pope Saint Leo IV
Pope from 847 to 855
Pope Saint Leo IV, who reigned as Roman Pontiff from 847–855.
Background
Pope who fortified Rome against Saracen raids by building the Leonine Wall around the Vatican, encircling Saint Peter's Basilica.
Summary
Pope Saint Leo IV, who reigned as Roman Pontiff from 847–855.
Papacy began
847
Papacy ended
855
Birth name
Leo