Pope Gregory IV

790 - 844

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Pope Gregory IV (Latin: Gregorius IV; died 25 January 844) was the bishop of Rome and ruler of the Papal States from October 827 to his death. His pontificate was notable for the papacy’s attempts to intervene in the quarrels between Emperor Louis the Pious and his sons. Read more on Wikipedia

Since 2007, the English Wikipedia page of Pope Gregory IV has received more than 135,495 page views. His biography is available in 72 different languages on Wikipedia (up from 71 in 2019). Pope Gregory IV is the 322nd most popular religious figure (down from 279th in 2019), the 380th most popular biography from Italy (down from 336th in 2019) and the 149th most popular Italian Religious Figure.

Pope Gregory IV is most famous for his role in the Investiture Controversy, which was a dispute between the Holy Roman Emperor and the Catholic Church over who had the right to appoint bishops.

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    Historical Popularity Index (HPI)

  • 72

    Languages Editions (L)

  • 12.71

    Effective Languages (L*)

  • 3.20

    Coefficient of Variation (CV)

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Among religious figures, Pope Gregory IV ranks 322 out of 2,272Before him are Pope Gregory VI, Pope Honorius I, Pope Gelasius II, Pope Mark, Pope Honorius II, and John Vianney. After him are Pope Boniface IV, Gregory of Nyssa, Abu Hurairah, Zechariah, Pope Benedict III, and Pope Hormisdas.

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Among people born in 790, Pope Gregory IV ranks 1After him are Pope Leo IV, Íñigo Arista of Pamplona, Fatimah bint Musa, Ramiro I of Asturias, Li He, Leo the Mathematician, and Euphrosyne. Among people deceased in 844, Pope Gregory IV ranks 1After him are Michael I Rangabe, Abdallah ibn Tahir al-Khurasani, and Galindo Garcés.

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In Italy

Among people born in Italy, Pope Gregory IV ranks 380 out of 4,088Before him are Pope Gregory VI (1000), Pope Honorius I (585), Pope Gelasius II (1062), Pope Mark (290), Pope Honorius II (1100), and Andrea del Sarto (1486). After him are Pope Boniface IV (550), Cesare Beccaria (1738), Dino Zoff (1942), Parmigianino (1503), Roger II of Sicily (1095), and Pope Benedict III (810).


Among religious figures born in Italy, Pope Gregory IV ranks 149Before him are Pope John I (470), Pope Gregory VI (1000), Pope Honorius I (585), Pope Gelasius II (1062), Pope Mark (290), and Pope Honorius II (1100). After him are Pope Boniface IV (550), Pope Benedict III (810), Pope Hormisdas (450), Pope Leo IV (790), Pope Agatho (574), and Pope Benedict I (525).