Question: Who is the paternal grandmother of Mary Percy, Countess Of Northumberland?
Sentence (from "George Talbot, 4th Earl of Shrewsbury"): c. 1468 – 26 July 1538) was the son of John Talbot, 3rd Earl of Shrewsbury, and Lady Catherine Stafford, daughter of the 1st Duke of Buckingham.
Relevant evidence: Yes