Question: Who is the maternal grandfather of Princess Maria Bona Of Savoy-Genoa?
Sentence (from "Princess Isabella of Bavaria"): Marie Elisabeth Luise Amalie Elvire Blanche Eleonore; 31 August 1863 – 26 February 1924) was the third child and eldest daughter of Prince Adalbert of Bavaria and his wife Infanta Amalia of Spain.
Relevant evidence: Yes