Pope Gregory IX

1160 - 1241

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Pope Gregory IX (Latin: Gregorius IX; born Ugolino di Conti; c. 1145 or before 1170 – 22 August 1241) was head of the Catholic Church and ruler of the Papal States from 19 March 1227 to his death. Read more on Wikipedia

Since 2007, the English Wikipedia page of Pope Gregory IX has received more than 422,064 page views. His biography is available in 68 different languages on Wikipedia (up from 67 in 2019). Pope Gregory IX is the 126th most popular religious figure (down from 120th in 2019), the 154th most popular biography from Italy (down from 138th in 2019) and the 41st most popular Italian Religious Figure.

Pope Gregory IX was most famous for the creation of the Inquisition.

Memorability Metrics

  • 420k

    Page Views (PV)

  • 81.02

    Historical Popularity Index (HPI)

  • 68

    Languages Editions (L)

  • 12.56

    Effective Languages (L*)

  • 2.84

    Coefficient of Variation (CV)

Page views of Pope Gregory IXES by language


Among religious figures, Pope Gregory IX ranks 126 out of 2,272Before him are Saint Christopher, Agatha of Sicily, Hassan-i Sabbah, Pope John XXII, Pope Leo XII, and Anselm of Canterbury. After him are Pope Clement VIII, Pope Benedict XIV, Bridget of Sweden, Barnabas, Pope Paul V, and Miriam.

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Among people born in 1160, Pope Gregory IX ranks 2Before him is Pope Innocent III. After him are Sibylla, Queen of Jerusalem, Pérotin, Ali ibn al-Athir, Abu Yusuf Yaqub al-Mansur, Hartmann von Aue, Muhammad of Ghor, Arnaud Amalric, Ma Yuan, Dulce of Aragon, and Alys of France, Countess of Vexin. Among people deceased in 1241, Pope Gregory IX ranks 1After him are Snorri Sturluson, Ögedei Khan, Pope Celestine IV, Valdemar II of Denmark, Ivan Asen II of Bulgaria, Henry II the Pious, Isabella of England, Irene Laskarina, Fujiwara no Teika, Amaury de Montfort, and Eleanor, Fair Maid of Brittany.

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In Italy

Among people born in Italy, Pope Gregory IX ranks 154 out of 4,088Before him are Agatha of Sicily (235), Joseph-Louis Lagrange (1736), Carlo Collodi (1826), Gaetano Donizetti (1797), Pope Leo XII (1760), and Anselm of Canterbury (1033). After him are Pope Clement VIII (1536), Pope Benedict XIV (1675), Pier Paolo Pasolini (1922), Guillaume Apollinaire (1880), Suetonius (70), and Marcello Mastroianni (1924).


Among religious figures born in Italy, Pope Gregory IX ranks 41Before him are Catherine of Siena (1347), Pope Pius VI (1717), Pope Pius VIII (1761), Agatha of Sicily (235), Pope Leo XII (1760), and Anselm of Canterbury (1033). After him are Pope Clement VIII (1536), Pope Benedict XIV (1675), Pope Paul V (1552), Pope Leo I (390), Pope Gregory XII (1335), and Pope Sixtus V (1520).