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Lady Margaret Beaufort 1443–1509

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.

A Reliability
A
Reliability Score: A
Strong — 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 Lady Beaufort 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: August 25, 2026 · Reliability: A — verified across 3 independent trees, with linked records

Born 31 May 1443 · Bletsoe Castle, Bedfordshire, England
Died 29 Jun 1509 · Westminster, City of Westminster, Greater London, England
Father John Beaufort Earl Of Somerset Marquis Of Dorset And Somerset
Mother Margaret St John Beauchamp
Spouse Edmund Tudor Earl Of Richmond
Children Henry Vii
Siblings John Welles, Oliver Saint John
Records
Chalmers' General Biographical Dictionary Dictionary of National Biography, Volumes … England, Scotland, and Wales Royal … U.S. and International Marriage Records, … Netherlands, GenealogieOnline Trees Index UK and Ireland, Find a … UK and Ireland, Find a …
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Researchers connected through Lady Beaufort 1443–1509

and 2 more tree owners connected with Lady Beaufort 1443–1509

Immediate Family

Children
Henry Vii

Biography

Lady Margaret Beaufort was born in 1443 in Bletsoe Castle, Bedfordshire, England, the child of john beaufort earl of somerset marquis of dorset and somerset and margaret st john beauchamp. Lady Margaret Beaufort married edmund tudor earl of richmond, thomas stanley, and had children including henry vii. Lady Margaret Beaufort passed away in 1509 in Westminster, City of Westminster, Greater London, England.

Sources

  1. 1
    Record Chalmers' General Biographical Dictionary

  2. 2
    Record Dictionary of National Biography, Volumes 1-22

  3. 3
    Record England, Scotland, and Wales Royal Families

  4. 4
    Marriage Records U.S. and International Marriage Records, 1560-1900

  5. 5
    Record Netherlands, GenealogieOnline Trees Index

  6. 6
    Burial Records UK and Ireland, Find a Grave Index

  7. 7
    Record UK and Ireland, Find a Grave® Index, 1300s-Current

Life Timeline

1443
Birth of Lady Margaret Beaufort in Bletsoe Castle, Bedfordshire, England
Birth
1509
Death of Lady Margaret Beaufort in Westminster, London, Middlesex, England, Great Britain
Death

Oldest Ancestor Line from Lady Beaufort

This ancestor line traces from England (1373) to Bletsoe Castle, Bedfordshire, England (1443) across 3 generations.

Direct Lineage
generations

Frequently Asked Questions

Lady Beaufort (1443–1509) was born in Bletsoe Castle, Bedfordshire, England and died in Westminster, City of Westminster, Greater London, England. 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 (A) based on cross-tree validation.
Right now, 3 researchers on YourRoots have Lady 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

John Beaufort Earl Of Somerset Marquis Of Dorset And Somerset
Father
Margaret St John Beauchamp
Mother

Lady Beaufort's Ancestors

Pedigree chart — 3 generations on record

Self
Lady Margaret Beaufort PTP
1443–1509
Bletsoe Castle, Bedfordshire, England
Parents
Unknown
Unknown
Grandparents
Unknown
Unknown
Unknown
Unknown

Lady Beaufort's Descendants

1.
LB
Lady Margaret Beaufort PTP 1443–1509