||Mary (Percy) Ros was a member of aristocracy in the British Isles.|
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Brydges, E. (1812). "Percy, Duke of Northumberland." Collins's Peerage of England Genealogical, Biographical, and Historical, (Vol. II, pp. 217-366). London: F.C. and J. Rivington, Otridge and Son. Print.
Burke, J.B. (1852). "Henry de Percy, 3rd Lord Percy of Alnwick." A Genealogical and Heraldic Dictionary of the Peerage and Baronetage of the British Empire, (14th ed, pp.746). London: Colburn & Co. Google Books.
Merging Notice: This profile is a work-in-progress. Under developing rules on historically-significant ancestors over 300-years-old we expedite merges. The final WikiTree ID is Percy-108. Do not merge this profile into any other. Merge duplicates into this profile.
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