Question: Who is the maternal grandfather of Princess Maria Adelaide Of Savoy-Genoa?
Sentence (from "Princess Maria Isabella of Savoy-Genoa"): Princess Maria Isabella of Savoy- Genoa( born 23 June 1943) is the last surviving male- line descendant of the Dukes of Genoa, a cadet branch of the House of Savoy which ruled Italy from 1861 to 1946.
Relevant evidence: No