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William IX of Aquitaine

Duke of Aquitaine and Gascony and Count of Poitou ^[1]

Born

22 Oct 1071

Died

10 Feb 1126

Nationality

Duchy of Aquitaine ^[1]

Documented descendants

12620

Titles & positions

former duke of Aquitaine (25 Sep 1086 – 10 Feb 1126) ^[1]
former count of Poitiers (25 Sep 1086 – 10 Feb 1126) ^[1]

House

Ramnulfids ^[1]

Religion

not recorded

Sources

Wikidata Q5351 (retrieved 1 Nov 2026)

William IX of Aquitaine (1071–1126) | GOTHA Directory