Isabelle de Montfort 1057–1102
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
6 researchers on YourRoots have Isabelle Montfort 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: September 17, 2026 · Reliability: B — verified across 6 independent trees, with linked records
Researchers connected through Isabelle Montfort 1057–1102
“”
and 4 more tree owners connected with Isabelle Montfort 1057–1102
Immediate Family
Biography
Isabelle de Montfort was born in 1057 in Montfort, Île-de-France, France, the child of simon de montfort and isabel de broyes. Isabelle de Montfort married raoul de tosny, and had children including raoul de tosny, roger de tosny. Isabelle de Montfort passed away in 1102 in Saint-Rémy-l'Honoré, Yvelines, France.
Sources
-
1Record "FamilySearch Family Tree," database, <i>FamilySearch</i>
Life Timeline
Oldest Ancestor Line from Isabelle Montfort
This ancestor line traces from Broyes, Marne, France (1000) to Montfort, Île-de-France, France (1057) across 3 generations.
Frequently Asked Questions
- Isabelle Montfort (1057–1102) was born in Montfort, Île-de-France, France and died in Saint-Rémy-l'Honoré, Yvelines, France. 6 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, 6 researchers on YourRoots have Isabelle 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.
Related Records
Isabelle Montfort's Ancestors
Pedigree chart — 3 generations on record