Question: Who is the maternal grandfather of Arthur Hill, 3Rd Marquess Of Downshire?
Sentence (from "Arthur Hill, 4th Marquess of Downshire"): Arthur Wills Blundell Sandys Trumbull Windsor Hill, 4th Marquess of Downshire KP( 6 August 1812 – 6 August 1868) was an Irish peer, styled Earl of Hillsborough until 1845.
Relevant evidence: No