William II 1st Lord Helmsley and Belvoir, 2nd Baron Ros 1255–1316
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
2 researchers on YourRoots have William Ros 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, with linked records
Researchers connected through William Ros 1255–1316
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and 1 more tree owner connected with William Ros 1255–1316
Immediate Family
Biography
In 1255, William II 1st Lord Helmsley and Belvoir, 2nd Baron Ros entered the world in Helmsley Castle North Riding, Yorkshire, England, born to robert iv 1st baron hamlake de ros and isabel d aubigny. William II 1st Lord Helmsley and Belvoir, 2nd Baron Ros married maud vaux, and had children including agnes de ros, john de rosse, margaret de ros, sir william iiii de ros 3rd baron ros, william lord of helmsley de ros. William II 1st Lord Helmsley and Belvoir, 2nd Baron Ros passed away in 1316 in Youlton, Yorkshire, England.
Sources
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1Record Millennium File
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2Record Web: Netherlands, GenealogieOnline Trees Index, 1000-Current
Life Timeline
Oldest Ancestor Line from William Ros
This ancestor line traces from Helmsley Castle, Yorkshire, England (1233) to Helmsley Castle North Riding, Yorkshire, England (1255) across 2 generations.
Frequently Asked Questions
- William Ros (1255–1316) was born in Helmsley Castle North Riding, Yorkshire, , England and died in Youlton, Yorkshire, , England. 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 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 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.
Related Records
William Ros's Ancestors
Pedigree chart — 3 generations on record