Guillaume Plantagenet 1136–1163
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
Compare a Public Tree Person with your own tree using Compare Tree.
- A 3 criteria (Strong)
- B 2 criteria (Medium)
- C 1 criteria (Basic)
- Record available
- Descendant's record available
- Star tree owner
10 researchers on YourRoots have Guillaume Plantagenet in their family trees — each with their own records and documentation. Trace the migration path across 4 generations. If this ancestor is in your tree too, you can compare what you've found and fill in the gaps together.
Last updated: September 17, 2026 · Reliability: B — verified across 10 independent trees
Researchers connected through Guillaume Plantagenet 1136–1163
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and 9 more tree owners connected with Guillaume Plantagenet 1136–1163
Immediate Family
Biography
Guillaume Plantagenet was born in 1136 in Argentan, Orne, Basse-Normandie, France, the child of geoffrey v plantagenet the fair count of anjou and matilda empress deengland. Guillaume Plantagenet passed away in 1163 in Rouen, Seine-Maritime, Haute-Normandie, France.
Sources
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1Record Netherlands, GenealogieOnline Trees Index
Life Timeline
Oldest Ancestor Line from Guillaume Plantagenet
This ancestor line traces from Evreux, Normandy, France (1000) to Argentan, Orne, Basse-Normandie, France (1136) across 4 generations.
Frequently Asked Questions
- Guillaume Plantagenet (1136–1163) was born in Argentan, Orne, Basse-Normandie, France and died in Rouen, Seine-Maritime, Haute-Normandie, France. 10 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, 10 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 4 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.
Related Records
Guillaume Plantagenet's Ancestors
Pedigree chart — 3 generations on record