Question: Who is the paternal grandfather of Mervyn Tuchet, 4Th Earl Of Castlehaven?
Sentence (from "Mervyn Tuchet, 2nd Earl of Castlehaven"): Sometime before 1612 (records of the marriage are lacking), Lord Audley married Elizabeth Barnham, a sister-in-law of the philosopher and scientist Francis Bacon, and with her he had six children.
Relevant evidence: No