Question: Who is John Vaughan, 3Rd Earl Of Lisburne's paternal grandfather?
Sentence (from "John Vaughan, 3rd Earl of Lisburne"): He served in the Army, transferring from the 87th Foot to the 58th Foot as a Captain in 1795, and being promoted to Major the next month and Lieutenant-Colonel later the same year.
Relevant evidence: No