The youngest pope ever elected was Pope Benedict IX , who became pope in 1032 at a very young age, probably around 20, with some disputed claims that he might have been as young as 11–12.

Quick Scoop: Who Was the Youngest Pope Ever Elected?

Benedict IX, born Theophylactus of Tusculum, came from a powerful Roman noble family and was propelled into the papacy largely through their influence. His election in 1032 made him the youngest pope in history, a record that still stands today.

Most modern historians consider “about 20 years old” the most credible estimate for his age at election, though some medieval sources and later traditions say he might have been only 11 or 12. Even the Guinness World Records entry notes this lower estimate while cautiously referring to his “extreme youth.”

Why His Papacy Stands Out

  • He is remembered as the youngest pope ever elected in the Catholic Church’s history.
  • He served as pope on three separate occasions (1032–1044, part of 1045, and 1047–1048), something unique in papal history.
  • His rule was marked by intense political intrigue, accusations of corruption, and intervention from rival noble families and foreign powers.

But What About John XII?

You might also see Pope John XII mentioned as a very young pope.

  • John XII (Octavian of Tusculum) was elected in 955 at about 18 years old , which makes him one of the youngest, but not younger than Benedict IX in the usual reckoning.

So, in terms of historical consensus and church-focused sources, Benedict IX is generally regarded as the youngest pope ever elected , with age estimates centered around 20 and a debated but oft-repeated claim of early adolescence.

TL;DR:
The youngest pope ever elected was Pope Benedict IX , chosen in 1032, likely about 20 years old, with some disputed claims he was as young as 11–12.

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