YourRoots by Genomelink
banner

Sign up to explore more

Create a free account to navigate family trees, view ancestors, and discover connections.

Sir John de Cornwall 1306–1332 – Genealogical Records

Birth Date: 1306

Birth Location: Truro, Cornwall, England

Death Date: 1332

Death Location: Truro, Cornwall, England

Father: William Cornwall

Mother: Margaret Cornwall

Spouse(s): Margery Trejago

Children(s): Lady Cornwall

The story of Sir John de Cornwall began in 1306 in Truro, Cornwall, England. Sir John de Cornwall married Margery Trejago, and had children including Lady Margaret Margery Plantagenet De Cornwall. Sir John de Cornwall passed away in 1332 in Truro, Cornwall, England.

Find more search results for Sir Cornwall
SC

Reliability Score

This score reflects the reliability of the source family tree. A high rating indicates a trustworthy source with strong data consistency.

Reliability Score:
B
Criteria:
  • A 3 criteria (Strong)
  • B 2 criteria (Medium)
  • C 1 criteria (Basic)
  • N/A 0 criteria (Insufficient)

This tree's reliability score:

  • Record available
  • Descendant's record available
  • Star tree owner

Biography

  • The story of Sir John de Cornwall began in 1306 in Truro, Cornwall, England.
  • Sir John de Cornwall married Margery Trejago, and had children including Lady Margaret Margery Plantagenet De Cornwall.
  • Sir John de Cornwall passed away in 1332 in Truro, Cornwall, England.

Immediate Family

Parents

William Cornwall
1280–1340
Birth Location: Truro, Cornwall, England
WC
Margaret Cornwall
1280–1306
Birth Location: England
MC

Spouses(s)

Margery Trejago
1310–1357
Birth Location: Tregarthen, Cornwall, England
MT

Children(s)

Lady Cornwall
1332–1400
Birth Location: Truro, Cornwall, England
LC

Sir Cornwall's Ancestors

Self
Sir Cornwall
1306–1332
Birth Place: Truro, Cornwall, England
Parents
William de Cornwall
1280–1340
Truro, Cornwall, England
Margaret (de) Cornwall
1280–1306
England
Grandparents
Walter (Plantagenet de Cornwall, shows the arms of Tregarthin quartering the arms of the de Cornwall family of Brannel: A lion rampant in chief a label of) three
1245–1313
BranellHertfordshire, England
Margery (de fitz) Alan
1254–1300
England
Great-Grandparents
Richard HRE
1209–1272
2nd-Great-Grandparents
John Arthur
1166–1216
Isabella Fo
1187–1246

Sir Cornwall's Descendants

1.
SC
Sir (John de) Cornwall (1306–1332) m. Margery Trejago (1310–1357)
  1. 1. Lady (Margaret Margery Plantagenet de) Cornwall 1332–1400 m. Sir (David Dafydd de Hendower Hendure, 4th Baron of Hendwr, Baron of) Edernion 1320–1400
    1. 1. Sir (Thomas Hendower, 6th Baron of Hendwr, Lord of) Branell 1370–1440 m. Isabel (de) Boulaye 1370–
      1. 1. Richard (ap Thomas de Hendower, Lord of) Hendower 1410–1460 m. Katherine Chamberlayne 1412–1460
        1. 1. Margaret Hendower 1432–1506 m. Thomas (II 'The Younger' Tregarthin Tregarthen, Sheriff of Cornwall,) 1492 1430–1509

Sir Cornwall's Timeline

2 Records

1306
1306
Birth of Sir John de Cornwall in Truro, Cornwall, England
Truro, Cornwall, England
1332
1332
Age 26
Death of Sir John de Cornwall in Truro, Cornwall, England
Truro, Cornwall, England

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 1306
    Event Place: Truro, Cornwall, England

    Genealogy Event 2
    Event Type: Death
    Event Date: 1332
    Event Place: Truro, Cornwall, England
Find more search results for Sir Cornwall

About YourRoots

Family Tree Map

Explore your family tree geographically

Import your GEDCOM file to transform your family tree into an interactive global map. See your roots laid out visually and understand your true geographic heritage.

Powerful tools like "Trace Back To Me" instantly map your family's migration paths from a chosen ancestor all the way back to you.

LEARN MORE
AI Genealogy Research

Discover ancestors beyond "end-of-line" automatically

Import your family tree and let AI expand it for you. AI Ancestor Finder scans "end-of-line" ancestors to uncover their parents across hundreds of family lines at once. AI Deep Research analyzes selected ancestors and family clusters, suggesting relevant records and next steps.

Turn on Auto Research Mode to get new discoveries daily or weekly, so your tree keeps growing even while you're away.

LEARN MORE
DNA Match

Find more DNA matches across all DNA tests

Combine your DNA data with your family tree to unlock the full power of YourRoots DNA Match. Connect with relatives across major testing services — Ancestry, 23andMe, MyHeritage, and more.

View your matches' maps and trees to identify shared ancestors, and soon you'll be able to add them directly to your own tree and map.

LEARN MORE
Ancestry Reports

Ancestry DNA analysis that goes deeper than others

Unlock exclusive reports that reveal your deeper origins.

  • Deep Ancestry Report — Analyze 130+ ethnicities, sub-regions, and 1,800+ communities in one detailed view.
  • Global & Native American Reports — Developed with Stanford researchers to uncover hidden ancestries across all 22 chromosomes.
  • Ancient DNA Series — Compare your DNA with 1,000+ ancient genomes from Viking, Celtic, and early American civilizations.
LEARN MORE