Question: Who is George Maximilianovich, 6Th Duke Of Leuchtenberg's maternal grandfather?
Sentence (from "Jacobo Fitz-James Stuart, 6th Duke of Liria and Jérica"): " Don" Jacobo José María Fitzjames- Stuart y Silva, 6th Duke of Berwick, 6th Duke of Liria, 6th Duke of Jérica, Grandee of Spain( 3 January 1792 – 5 January 1795) was the second surviving son of the 5th Duke of Berwick, briefly inheriting his titles.
Relevant evidence: No