William Donn de Burgh 3rd Earl of Ulster 1312–1333
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
3 researchers on YourRoots have William Ulster in their family trees — each with their own records and documentation. Trace the migration path across 13 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 3 independent trees, with linked records
Researchers connected through William Ulster 1312–1333
“”
and 2 more tree owners connected with William Ulster 1312–1333
Immediate Family
Biography
In 1312, William Donn de Burgh 3rd Earl of Ulster entered the world in Carrick Castle, County Kildare, Ireland. William Donn de Burgh 3rd Earl of Ulster married maud of lancaster countess of ulster, and had children including elizabeth de burgh, isabella de burgh, margaret de burgh. William Donn de Burgh 3rd Earl of Ulster passed away in 1333 in Belfast, Ireland.
Sources
-
1Record "FamilySearch Family Tree," database, FamilySearch
Life Timeline
Oldest Ancestor Line from William Ulster
This ancestor line traces from Broyes, Marne, Champagne-Ardenne, France (1000) to Carrick Castle, County Kildare, Ireland (1312) across 13 generations.
Frequently Asked Questions
- William Ulster (1312–1333) was born in Carrick Castle, County Kildare, Ireland and died in Belfast, Ireland. 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 (B) based on cross-tree validation.
- Right now, 3 researchers on YourRoots have William 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 13 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
William Ulster's Ancestors
Pedigree chart — 3 generations on record