Who was Gilbert Clare?

Gilbert Clare (1180–1230) was born in Hertford, Hertfordshire, England and died in Penrose, Brittany, France. 2 researchers on YourRoots have this ancestor in their family trees.

How many people are researching Gilbert?

Right now, 2 researchers on YourRoots have Gilbert in their trees. The ancestor migration map traces 2 generations of this lineage.

What records do they have for Gilbert?

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

How do I compare family trees?

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

Gilbert III 5th Earl of Hertford 6th Earl of Gloucester "Magna Charta Baron" Clare 1180–1230

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 2 independent trees

Birth year and location consistent across 2 trees

Death year and location consistent across 2 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

2 researchers on YourRoots have Gilbert Clare in their family trees — each with their own records and documentation. Trace the migration path across 2 generations. If this ancestor is in your tree too, you can compare what you've found and fill in the gaps together.

Last updated: August 25, 2026 · Reliability: B — verified across 2 independent trees

Born 9 Oct 1180 · Hertford, Hertfordshire, England

Died 25 Oct 1230 · Penrose, Brittany, France

Father Richard Fitz Robert Clare

Mother Amicie Fitzwilliam De Mellent Caen

Spouse Isabel Of Pembroke Marshal Countess Of Hertford Amp Cornwall

Children Lady Avice Avicia De Clare, Lady Clare

Records

Millennium File

Compare Tree

Researchers connected through Gilbert Clare 1180–1230

and 1 more tree owner connected with Gilbert Clare 1180–1230

Immediate Family

Parents

Richard Fitz Robert Clare

Amicie Fitzwilliam De Mellent Caen

Spouse(s)

Isabel Of Pembroke Marshal Countess Of Hertford Amp Cornwall

Children

Lady Avice Avicia De Clare

Lady Clare

Biography

In 1180, Gilbert III 5th Earl of Hertford 6th Earl of Gloucester "Magna Charta Baron" Clare entered the world in Hertford, Hertfordshire, England, born to richard fitz robert clare and amicie fitzwilliam de mellent caen. Gilbert III 5th Earl of Hertford 6th Earl of Gloucester "Magna Charta Baron" Clare married isabel of pembroke marshal countess of hertford amp cornwall, and had children including lady avice avicia de clare. Gilbert III 5th Earl of Hertford 6th Earl of Gloucester "Magna Charta Baron" Clare passed away in 1230 in Penrose, Brittany, France.

Sources

1

Record Millennium File

Life Timeline

1180

Birth of Gilbert III 5th Earl of Hertford 6th Earl of Gloucester "Magna Charta Baron" Clare in Hertford, Hertfordshire, England

Birth

1230

Death of Gilbert III 5th Earl of Hertford 6th Earl of Gloucester "Magna Charta Baron" Clare in Penrose, Brittany, France

Death

Oldest Ancestor Line from Gilbert Clare

This ancestor line traces from Tonbridge Castle, Kent, England (1153) to Hertford, Hertfordshire, England (1180) across 2 generations.

Direct Lineage

generations

Frequently Asked Questions

: Gilbert Clare (1180–1230) was born in Hertford, Hertfordshire, England and died in Penrose, Brittany, France. 2 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, 2 researchers on YourRoots have Gilbert 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 2 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.