Princess Maria Bona of Savoy-Genoa
Princess Bona of Savoy- Genoa, later Princess Bona of Bavaria( Maria Bona Margherita Albertina Vittoria; 1 August 1896 – 2 February 1971), was a daughter of Prince Thomas, Duke of Genoa and Princess Isabella of Bavaria.
Prince Thomas, Duke of Genoa
Prince Tommaso of Savoy, 2nd Duke of Genoa (Tommaso Alberto Vittorio; 6 February 1854 – 15 April 1931), also known as "Thomas Albert Victor of Savoy", was an Italian royal prince, nephew of the King of Sardinia, who on 18 February 1861 became the first King of a united Italy.
His cousin and brother-in-law Umberto I and his nephew Victor Emmanuel III became subsequent kings of Italy.
Princess Maria Adelaide of Savoy-Genoa
Princess Adelaide of Savoy- Genoa( Maria Adelaide Vittoria Amelia; 25 April 1904 – 2 August 1979), was a daughter of Prince Thomas, Duke of Genoa and Princess Isabella of Bavaria.
Princess Isabella Antonie of Croÿ
Princess Isabella of Croÿ( Isabella Antonie Eleonore Natalie Klementine; 7 October 1890 – 30 March 1982) was a Princess of Croÿ by birth and a Princess of Bavaria and member of the House of Wittelsbach through her marriage to Prince Franz of Bavaria, a son of Ludwig III, the last King of Bavaria.
Princess Sumaya bint Hassan
Sumaya bint Hassan( born 14 May 1971) is a princess of Jordan.
Princess Isabella of Bavaria
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.
By her marriage to Prince Thomas, Duke of Genoa, she became referred to as the Duchess of Genoa.
Princess Maria Elisabeth of Bavaria
Princess Maria Elisabeth of Bavaria( 9 September 1914 – 13 May 2011) was the eldest daughter of Prince Franz of Bavaria, third son of Ludwig III of Bavaria.
Isabella of France, Dauphine of Viennois
" For other persons named Isabella of France, see Isabella of France( disambiguation)" Isabella of France and Burgundy( 1310 – April 1348) was the daughter of Philip V of France and Joan II, Countess of Burgundy.
Princess Amalie Isabella of Bavaria
Princess Amalie Isabella of Bavaria( December 15, 1921 – March 28, 1985) was a member of the Bavarian Royal House of Wittelsbach.
Isabella Orsini
Princess Isabella Orsini de Ligne de La Trémoïlle( born 2 December 1974) is an Italian actress.

Question: What nationality is Princess Isabella Of Bavaria's husband?
Answer: Italian