Who was Guillaume DeAquitaine?

Guillaume DeAquitaine (1071–1127) was born in , , Aquitaine, France and died in Poitiers, Vienne, Poitou-Charentes, France. 3 researchers on YourRoots have this ancestor in their family trees.

How many people are researching Guillaume?

Right now, 3 researchers on YourRoots have Guillaume in their trees. The ancestor migration map traces 3 generations of this lineage.

What records do they have for Guillaume?

Records vary by researcher and can include census, vital, parish, cemetery, and family sources.

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Use Compare Tree on an available researcher profile to compare overlapping people and records.

Guillaume IX DeTroubador DeAquitaine 1071–1127

Public Tree Person

What is a Public Tree Person?

A Public Tree Person is an ancestor documented independently by multiple YourRoots tree owners. When several researchers' family histories converge on the same person, we publish a shared page that combines what they've documented.

Why this is a Public Tree Person

Full name consistent across 3 independent trees

Birth year and location consistent across 3 trees

Death year and location consistent across 3 trees

Compare a Public Tree Person with your own tree using Compare Tree.

B Reliability

Reliability Score: B

Medium — based on the source tree

Grade scale

A 3 criteria (Strong)
B 2 criteria (Medium)
C 1 criteria (Basic)

Verification checklist

Record available
Descendant's record available
Star tree owner

3 researchers on YourRoots have Guillaume DeAquitaine in their family trees — each with their own records and documentation. Trace the migration path across 3 generations. If this ancestor is in your tree too, you can compare what you've found and fill in the gaps together.

Last updated: July 22, 2026 · Reliability: B — verified across 3 independent trees

Born 22 Oct 1071 · , , Aquitaine, France

Died 10 Feb 1127 · Poitiers, Vienne, Poitou-Charentes, France

Father William Aquitaine

Mother Hildegarde Capet Debourgogne

Spouse Philippa Mathilde

Children William X Toulousan

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Researchers connected through Guillaume DeAquitaine 1071–1127

and 2 more tree owners connected with Guillaume DeAquitaine 1071–1127

Immediate Family

Parents

William Aquitaine

Hildegarde Capet Debourgogne

Spouse(s)

Philippa Mathilde

Children

William X Toulousan

Biography

Guillaume IX DeTroubador DeAquitaine was born in 1071 in, Aquitaine, France, the child of william aquitaine and hildegarde capet debourgogne. Guillaume IX DeTroubador DeAquitaine married philippa mathilde, and had children including william x toulousan. Guillaume IX DeTroubador DeAquitaine passed away in 1127 in Poitiers, Vienne, Poitou-Charentes, France.

Sources

Life Timeline

1071

Birth of Guillaume IX DeTroubador DeAquitaine in, Aquitaine, France

Birth

1127

Death of Guillaume IX DeTroubador DeAquitaine in Poitiers, Vienne, Poitou-Charentes, France

Death

Oldest Ancestor Line from Guillaume DeAquitaine

This ancestor line traces from Meulan, Yvelines, Ile-de-France, France (1011) to , , Aquitaine, France (1071) across 3 generations.

Direct Lineage

generations

Frequently Asked Questions

: Guillaume DeAquitaine (1071–1127) was born in , , Aquitaine, France and died in Poitiers, Vienne, Poitou-Charentes, France. 3 researchers on YourRoots have this ancestor in their family trees, each with their own records. This page combines what they've independently documented and assigns a Reliability Score (B) based on cross-tree validation.
: Right now, 3 researchers on YourRoots have Guillaume in their trees. They're working independently, so connecting with them is a good way to cross-check your records and find things you might have missed. You can also explore the ancestor migration map that traces 3 generations of this lineage geographically.
: It varies by researcher — some have census records, others have marriage certificates, parish registers, or family Bible entries. Scroll up to see exactly what each person has cited.
: Use the "Compare Tree" button on any researcher's profile above. You can compare your tree side by side with theirs, see where your records overlap or differ, and collaborate to fill gaps.