Pope Leo IV

Pope of the Catholic Church

  • Fame63.5
  • Momentum15.4
  • Religious Figures rank#96
Source-basedStable
  • Fame63.5
  • Momentum15.4
  • Religious Figures rank#96
  • Wikipedia5.5K
Lived 790–855, aged 65Italy
  • Wikipedia
    73 languages
    Cross-language footprint
  • Era
    790–855
    Aged 65
Summary
Updated 2026-06-08

He fortified the Vatican with walls that still bear his name, rallied a coalition of Italian cities to defeat Saracen raiders at sea, and spent his papacy rebuilding what invaders had burned.

Biography

About

Leo IV became bishop of Rome on 10 April 847, inheriting a city scarred by Arab raids. He set to work repairing the damaged churches and then turned to prevention: he constructed the Leonine Wall around Vatican Hill, a defensive barrier meant to keep future attackers at bay. When Saracen forces threatened again by sea, he organized a league of Italian cities and led them to victory at the Battle of Ostia. He died on 17 July 855, having spent eight years shoring up both the physical and political defenses of Rome.

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By the numbers

Score breakdown

The six component signals behind the Fame score, and their ranks across the leaderboards.

Fame
Stable
63.5
Composite of search demand, mentions, audience & graph footprint.
Score components
Momentum15.4
Historical23.5
Now attention2.2
Source confidence60.0
Completeness70.0
Global rank
Country rank
Category rank
#96
Receipts

Sources

  • Wikipedia
    wikipedia · en.wikipedia.org
    High confidence
  • Wikidata
    wikidata · wikidata.org
    High confidence
  • Pantheon 2.0
    database · pantheon.world
    High confidence