Question: Who is the paternal grandmother of John Perceval, 4Th Earl Of Egmont?
Sentence (from "John Perceval, 1st Earl of Egmont"): John Perceval, 1st Earl of Egmont, PC, FRS( 12 July 16831 May 1748), known as Sir John Perceval, Bt, from 1691 to 1715, as The Lord Perceval from 1715 to 1722 and as The Viscount Perceval from 1722 to 1733, was an Anglo- Irish politician.
Relevant evidence: No