Question: Who is Anne Devereux's maternal grandfather?
Sentence (from "Anne Devereux"): Anne Devereux, Countess of Pembroke (c. 1430 – after 25 June 1486), was an English noblewoman, who was Countess of Pembroke during the 15th century by virtue of marriage to William Herbert, 1st Earl of Pembroke.
Relevant evidence: No