Pope Leo IV

790 - 855

Photo of Pope Leo IV

Icon of person Pope Leo IV

Pope Leo IV (790 – 17 July 855) was the bishop of Rome and ruler of the Papal States from 10 April 847 to his death. He is remembered for repairing Roman churches that had been damaged during the Arab raid against Rome, and for building the Leonine Wall around Vatican Hill to protect the city. Read more on Wikipedia

Since 2007, the English Wikipedia page of Pope Leo IV has received more than 269,185 page views. His biography is available in 69 different languages on Wikipedia (up from 65 in 2019). Pope Leo IV is the 325th most popular religious figure (up from 328th in 2019), the 393rd most popular biography from Italy (down from 390th in 2019) and the 149th most popular Religious Figure.

Pope Leo IV is most famous for being the pope who crowned Charlemagne as the Holy Roman Emperor.

Memorability Metrics

  • 270k

    Page Views (PV)

  • 69.82

    Historical Popularity Index (HPI)

  • 69

    Languages Editions (L)

  • 12.01

    Effective Languages (L*)

  • 3.32

    Coefficient of Variation (CV)

Page views of Pope Leo IVS by language


Among religious figures, Pope Leo IV ranks 325 out of 2,238Before him are Pope John XXI, Pope John I, Pope Zachary, Pope Stephen IV, Pope Adrian V, and Pope Callixtus I. After him are Ubba, Pope Martin I, Sabbatai Zevi, Pope Nicholas IV, Pope Damasus II, and Ephrem the Syrian.

Most Popular Religious Figures in Wikipedia

Go to all Rankings


Among people born in 790, Pope Leo IV ranks 2Before him is Pope Gregory IV. After him are Íñigo Arista of Pamplona, Ramiro I of Asturias, Fatimah bint Musa, Leo the Mathematician, Li He, Berengar the Wise, Otfrid of Weissenburg, and Euphrosyne. Among people deceased in 855, Pope Leo IV ranks 3Before him are Lothair I and Ahmad ibn Hanbal. After him is Boso the Elder.

Others Born in 790

Go to all Rankings

Others Deceased in 855

Go to all Rankings

In Italy

Among people born in Italy, Pope Leo IV ranks 393 out of 4,668Before him are Pope John I (470), Pope Zachary (679), Pope Stephen IV (770), Pietro Mascagni (1863), Pope Adrian V (1205), and Pope Callixtus I (180). After him are Poppaea Sabina (30), Pope Martin I (590), Pope Nicholas IV (1227), Alberto Moravia (1907), Carlo Ponti (1912), and Umberto Boccioni (1882).


Among religious figures born in Italy, Pope Leo IV ranks 149Before him are Pope Anacletus (1), Pope John I (470), Pope Zachary (679), Pope Stephen IV (770), Pope Adrian V (1205), and Pope Callixtus I (180). After him are Pope Martin I (590), Pope Nicholas IV (1227), Philip Neri (1515), Pope Eugene I (600), Pope Benedict I (525), and Pope Eutychian (300).