# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/pope-gregory-xiii
# Generated: 2026-09-01T04:33:46.018Z

schema: https://schema.org/Person
url: "https://fame.am/person/pope-gregory-xiii"
name: "Pope Gregory XIII"
slug: "pope-gregory-xiii"
description: "He remade time itself. Every date you write, every calendar you check — that's his doing. The pope who saw that the Julian calendar had drifted ten days out of sync with the solar year and corrected it in 1582, embedding his name in the daily life of the entire planet."
tagline: "Pope of the Catholic Church from 1572 to 1585 (1502–1585)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Lavinia_Fontana_-_Portrait_of_Pope_Gregory_XIII.jpg?width=1200"
gender: "male"
country:
  name: "Italy"
  isoCode: "IT"
category:
  name: "Religious Figures"
  slug: "religious-figures"
profileType:
  name: "Religious Figure"
  slug: "religious-figure"
birthDate: "1502-01-01"
deathDate: "1585-04-10"
livingStatus: "DECEASED"
scores:
  popularity:           68.11
  momentum:             15
  historical:           24.622656
  currentAttention:     19.60714285714285
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: 30
tags:
  - name: "Religious Figures"
    slug: "religious-figures"
  - name: "Religious Figure"
    slug: "religious-figure"
  - name: "Religion"
    slug: "religion"
  - name: "Early Modern Era"
    slug: "early-modern-era"
sources:
  - url: "https://www.wikidata.org/wiki/Q83029"
    title: "Wikidata"
    type:  "WIKIDATA"
  - url: "https://en.wikipedia.org/wiki/Pope_Gregory_XIII"
    title: "Wikipedia"
    type:  "WIKIPEDIA"
  - url: "https://pantheon.world/profile/person/Pope%20Gregory%20XIII"
    title: "Pantheon 2.0"
    type:  "DATABASE"
  - url: "https://ar.wikipedia.org/wiki/%D8%BA%D8%B1%D9%8A%D8%BA%D9%88%D8%B1%D9%8A%D9%88%D8%B3_%D8%A7%D9%84%D8%AB%D8%A7%D9%84%D8%AB_%D8%B9%D8%B4%D8%B1"
    title: "غريغوريوس الثالث عشر"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%AC%D8%B1%D9%8A%D8%AC%D9%88%D8%B1%D9%8A%D9%88%D8%B3_%D8%A7%D9%84%D8%AA%D9%84%D8%A7%D8%AA%D8%A7%D8%B4%D8%B1"
    title: "جريجوريوس التلاتاشر"
    type:  "WIKIPEDIA"
  - url: "https://az.wikipedia.org/wiki/XIII_Qriqori"
    title: "XIII Qriqori"
    type:  "WIKIPEDIA"
  - url: "https://bcl.wikipedia.org/wiki/Papa_Gregorio_XIII"
    title: "Papa Gregorio XIII"
    type:  "WIKIPEDIA"
  - url: "https://be.wikipedia.org/wiki/%D0%93%D1%80%D1%8B%D0%B3%D0%BE%D1%80%D1%8B%D0%B9_XIII"
    title: "Грыгорый XIII"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%93%D1%80%D0%B8%D0%B3%D0%BE%D1%80%D0%B8%D0%B9_XIII"
    title: "Григорий XIII"
    type:  "WIKIPEDIA"
  - url: "https://br.wikipedia.org/wiki/Gregor_XIII"
    title: "Gregor XIII"
    type:  "WIKIPEDIA"
  - url: "https://bs.wikipedia.org/wiki/Papa_Grgur_XIII"
    title: "Papa Grgur XIII"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Gregori_XIII"
    title: "Gregori XIII"
    type:  "WIKIPEDIA"
  - url: "https://cdo.wikipedia.org/wiki/G%C3%A1u-hu%C3%B2ng_Gregorius_13-si%C3%A9"
    title: "Gáu-huòng Gregorius 13-sié"
    type:  "WIKIPEDIA"
  - url: "https://ckb.wikipedia.org/wiki/%DA%AF%D8%B1%DB%8C%DA%AF%DB%86%D8%B1%DB%8C_%D8%B3%DB%8E%D8%B2%D8%AF%DB%95%DA%BE%DB%95%D9%85"
    title: "گریگۆری سێزدەھەم"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/%C5%98eho%C5%99_XIII."
    title: "Řehoř XIII."
    type:  "WIKIPEDIA"
  - url: "https://cv.wikipedia.org/wiki/%D0%93%D1%80%D0%B8%D0%B3%D0%BE%D1%80%D0%B8%D0%B9_XIII"
    title: "Григорий XIII"
    type:  "WIKIPEDIA"
  - url: "https://cy.wikipedia.org/wiki/Pab_Grigor_XIII"
    title: "Pab Grigor XIII"
    type:  "WIKIPEDIA"
  - url: "https://da.wikipedia.org/wiki/Pave_Gregor_13."
    title: "Pave Gregor 13."
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Gregor_XIII."
    title: "Gregor XIII."
    type:  "WIKIPEDIA"
  - url: "https://diq.wikipedia.org/wiki/Gregorius_XIII"
    title: "Gregorius XIII"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%A0%CE%AC%CF%80%CE%B1%CF%82_%CE%93%CF%81%CE%B7%CE%B3%CF%8C%CF%81%CE%B9%CE%BF%CF%82_%CE%99%CE%93%CE%84"
    title: "Πάπας Γρηγόριος ΙΓ΄"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Gregorio_la_13-a"
    title: "Gregorio la 13-a"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Gregorio_XIII"
    title: "Gregorio XIII"
    type:  "WIKIPEDIA"
  - url: "https://et.wikipedia.org/wiki/Gregorius_XIII"
    title: "Gregorius XIII"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Gregorio_XIII.a"
    title: "Gregorio XIII.a"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikiquote.org/wiki/%C5%98eho%C5%99_XIII."
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://it.wikiquote.org/wiki/Papa_Gregorio_XIII"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://sr.wikiquote.org/wiki/%D0%9F%D0%B0%D0%BF%D0%B0_%D0%93%D1%80%D0%B3%D1%83%D1%80_XIII"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://af.wikipedia.org/wiki/Pous_Gregorius_XIII"
    title: "Pous Gregorius XIII"
    type:  "WIKIPEDIA"
  - url: "https://als.wikipedia.org/wiki/Gregor_XIII."
    title: "Gregor XIII."
    type:  "WIKIPEDIA"

# bio (long form, separated for readability)
bio: |
  Ugo Boncompagni was born 7 January 1502 and rose through the Church to become Pope Gregory XIII on 13 May 1572, taking the helm of both the Catholic Church and the Papal States. His papacy's defining act was commissioning the calendar reform that bears his name — the Gregorian calendar, which corrected the drift in the old Julian system and remains the international civil standard centuries later. He ruled until his death on 10 April 1585, but the calendar outlasted him, quietly organizing the days of believers and nonbelievers alike.