Pope John XXI

1215 - 1277

Pope John XXI

Pope John XXI (Latin: Ioannes XXI; c. 1215 – 20 May 1277), born Peter Juliani (Latin: Petrus Iulianus; Portuguese: Pedro Julião), was head of the Catholic Church and ruler of the Papal States from 8 September 1276 to his death. Apart from Damasus I (from Roman Lusitania), he has been the only Portuguese pope. Read more on Wikipedia

Since 2007, the English Wikipedia page of Pope John XXI has received more than 211,205 page views. His biography is available in 63 different languages on Wikipedia making him the 278th most popular religious figure.

Memorability Metrics

  • 210k

    Page Views (PV)

  • 69.83

    Historical Popularity Index (HPI)

  • 63

    Languages Editions (L)

  • 9.58

    Effective Languages (L*)

  • 3.24

    Coefficient of Variation (CV)

Page views of Pope John XXIS by language


Among religious figures, Pope John XXI ranks 278 out of 2,001Before him are Gregory of Nyssa, Pope Innocent IV, Abdullah ibn Abd al-Muttalib, Pope John I, Pope Benedict VIII, and Pope Lucius I. After him are Pope Nicholas I, Pope Alexander IV, Pope Gregory IV, Pope Sergius III, Pope Benedict III, and Pope Boniface I.

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Among people born in 1215, Pope John XXI ranks 2Before him is Kublai Khan. After him are Pope Celestine V, Pope Nicholas III, Violant of Hungary, Hethum I, King of Armenia, William of Moerbeke, Otto III, Margrave of Brandenburg, Zdislava Berka, and John I of Trebizond. Among people deceased in 1277, Pope John XXI ranks 2Before him is Baibars. After him are Stefan Uroš I and Konstantin Tih.

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In Portugal

Among people born in Portugal, Pope John XXI ranks 16 out of 370Before him are Manuel I of Portugal (1469), António Guterres (1949), Afonso I of Portugal (1109), Pope Damasus I (305), Luís de Camões (1524), and Pedro I of Brazil (1798). After him are John II of Portugal (1455), Sebastian of Portugal (1554), John I of Portugal (1358), José Mourinho (1963), Cristiano Ronaldo (1985), and Afonso V of Portugal (1432).


Among religious figures born in Portugal, Pope John XXI ranks 3Before him are Anthony of Padua (1195) and Pope Damasus I (305). After him are Sister Lúcia (1907), John of God (1495), Eulalia of Mérida (290), Yasuke (1530), Pelagio Galvani (1165), José Saraiva Martins (1932), António de Andrade (1580), John de Britto (1647), and José Policarpo (1936).

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