Question: Who is Henry Willoughby, 6Th Baron Middleton's paternal grandfather?
Sentence (from "Henry Willoughby, 6th Baron Middleton"): Henry Willoughby, 6th Baron Middleton (24 April 1761 – 19 June 1835), was an English nobleman, the only son of Henry Willoughby, 5th Baron Middleton.
Relevant evidence: Yes