William IX of AquitaniaAge: 54 years1071–1126
- Name
- William IX of Aquitania
- Given names
- William IX
- Surname
- of Aquitania
- Name prefix
- Duke
| Birth | 22 October 1071 46 |
| Marriage | View this family yes |
| Birth of a daughter #1 | Agnes of Aquitania yes |
| Death of a father | William VIII of Aquitania 25 September 1086 (Age 14 years) |
| Record ID number | MH:I307 yes |
| Record ID number | View this family MH:F168 yes |
| Death | 10 February 1126 (Age 54 years) |
| Family with parents |
| father |
William VIII of Aquitania Birth: 1025 56 Death: 25 September 1086 |
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Marriage: — |
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| himself |
William IX of Aquitania Birth: 22 October 1071 46 Death: 10 February 1126 |
| William IX of Aquitania + … … |
| himself |
William IX of Aquitania Birth: 22 October 1071 46 Death: 10 February 1126 |
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Marriage: — |
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Agnes of Aquitania Birth: Death: 1160 |
| Shared note | Duke of Aquitaine and Gascony and Count of Poitou (as William VII) between 1086 and his death.
One of the leaders of the Crusade of 1101 and the first troubadour, that is, vernacular lyric poet in the Occitan language |