William IV, Duke of Aquitaine

935 - 994

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William IV (937 – 3 February 994), called Fierebras or Fierebrace (meaning "Proud Arm", from the French Fier-à-bras or Fièrebrace, in turn from the Latin Ferox brachium), was the Duke of Aquitaine and Count of Poitou from 963 to his retirement in 990. William's father, William III, abdicated to the abbey of Saint-Cyprien in Poitiers and left the government to Fierebras. His mother was Gerloc, the daughter of Duke Rollo of Normandy. Read more on Wikipedia

Since 2007, the English Wikipedia page of William IV, Duke of Aquitaine has received more than 47,675 page views. His biography is available in 18 different languages on Wikipedia. William IV, Duke of Aquitaine is the 6,473rd most popular politician (down from 6,224th in 2019), the 1,994th most popular biography from France and the 486th most popular French Politician.

Memorability Metrics

  • 48k

    Page Views (PV)

  • 66.18

    Historical Popularity Index (HPI)

  • 18

    Languages Editions (L)

  • 6.73

    Effective Languages (L*)

  • 1.72

    Coefficient of Variation (CV)

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Among politicians, William IV, Duke of Aquitaine ranks 6,473 out of 15,710Before him are Jay Rockefeller, Toshiki Kaifu, Alberic I of Spoleto, Countess Louise Juliana of Nassau, Goran Hadžić, and Dawda Jawara. After him are William, Duke of Jülich-Cleves-Berg, Adolph John I, Count Palatine of Kleeburg, Jan Zamoyski, García Fernández of Castile, Anton Korošec, and Bairam Khan.

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Among people born in 935, William IV, Duke of Aquitaine ranks 4Before him are Harald Bluetooth, Harald Greycloak, and Hrotsvitha.  Among people deceased in 994, William IV, Duke of Aquitaine ranks 3Before him are Leopold I, Margrave of Austria and Sancho II of Pamplona. After him is Wolfgang of Regensburg.

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In France

Among people born in France, William IV, Duke of Aquitaine ranks 1,994 out of 5,234Before him are Jean Behra (1921), François Blondel (1618), Omar Sy (1978), Étienne Méhul (1763), Marguerite Long (1874), and François-Édouard Picot (1786). After him are John V, Duke of Brittany (1389), Hervé (1825), Édouard-Léon Scott de Martinville (1817), Yvan Goll (1891), Benedicta Henrietta of the Palatinate (1652), and Jean Daniélou (1905).


Among politicians born in France, William IV, Duke of Aquitaine ranks 486Before him are Aymon, Count of Savoy (1291), François Georges-Picot (1870), Fulk IV, Count of Anjou (1043), Louis-François de Boufflers (1644), Princess Elisabeth of Savoy (1800), and Alix of France (1151). After him are Joseph Darnand (1897), Jean-Pierre Jabouille (1942), Laurent Fabius (1946), Jean-Baptiste Carrier (1756), Étienne Charles de Loménie de Brienne (1727), and François de Neufville, duc de Villeroy (1644).