John IV, Duke of Brittany

1339 - 1399

Photo of John IV, Duke of Brittany

Icon of person John IV, Duke of Brittany

John IV the Conqueror KG (in Breton Yann IV, in French Jean IV, and traditionally in English sources both John of Montfort and John V) (1339 – 1 November 1399), was Duke of Brittany and Count of Montfort from 1345 until his death and 7th Earl of Richmond from 1372 until his death. Read more on Wikipedia

Since 2007, the English Wikipedia page of John IV, Duke of Brittany has received more than 204,017 page views. His biography is available in 24 different languages on Wikipedia (up from 23 in 2019). John IV, Duke of Brittany is the 6,872nd most popular politician (down from 6,644th in 2019).

Memorability Metrics

  • 200k

    Page Views (PV)

  • 57.13

    Historical Popularity Index (HPI)

  • 24

    Languages Editions (L)

  • 4.35

    Effective Languages (L*)

  • 2.81

    Coefficient of Variation (CV)

Page views of John IV, Duke of Brittanies by language

Over the past year John IV, Duke of Brittany has had the most page views in the with 31,983 views, followed by French (20,558), and Russian (5,717). In terms of yearly growth of page views the top 3 wikpedia editions are Bulgarian (109.86%), Basque (64.88%), and Greek (47.24%)


Among politicians, John IV, Duke of Brittany ranks 6,872 out of 19,576Before him are Princess Maria Antonia of the Two Sicilies, Gaius Marius the Younger, Hans-Gert Pöttering, Jacques Cathelineau, Nizamuddin Auliya, and Ramon Muntaner. After him are Theodora of Trebizond, Theodore of Corsica, Jeremy Corbyn, Rajaraja I, Isa Boletini, and Ingenuus.

Most Popular Politicians in Wikipedia

Go to all Rankings


Among people born in 1339, John IV, Duke of Brittany ranks 10Before him are Louis I, Duke of Anjou, Barquq, Eric XII of Sweden, Anna von Schweidnitz, Blanche of Bourbon, and Juana Manuel. After him are Frederick, Duke of Bavaria, Muhammad V of Granada, and Ramesuan. Among people deceased in 1399, John IV, Duke of Brittany ranks 5Before him are Jadwiga of Poland, John of Gaunt, Peter Parler, and Barquq. After him are Temür Qutlugh, Helen of Bosnia, Otto, Duke of Brunswick-Grubenhagen, and John Spata.

Others Born in 1339

Go to all Rankings

Others Deceased in 1399

Go to all Rankings