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.
Archduchess Maria Antonia of Austria (1899–1977)
Archduchess Maria Antonia of Austria (13 July 1899 – 22 October 1977) was a daughter of Archduke Leopold Salvator of Austria and Infanta Blanca of Spain.
She was member of the Tuscan branch of the Imperial House of Habsburg, an Archduchess of Austria and Princess of Tuscany by birth.
In 1919, after the fall of the Austro Hungary Empire, she moved with her family to Spain.
In 1924 she married Ramón de Orlandis y Villalonga, a Spanish aristocrat.
When she became a widow during the Spanish civil war Archduchess Maria Antonia moved permanently to South America where she remarried.
Archduchess Maria Luisa of Austria, Princess of Tuscany (1798-1857)
Archduchess Maria Luisa of Austria, Princess of Tuscany( 30 August 1798 – 15 June 1857) was a member of the House of Habsburg- Lorraine.
Archduchess Maria Theresa of Austria (1845–1927)
Archduchess Maria Theresa of Austria (15 July 1845 – 8 October 1927) was a member of the Austrian house of Habsburg-Lorraine.
Archduchess Maria Carolina of Austria (1740–1741)
Archduchess Maria Carolina of Austria (
Maria Carolina Ernestina Antonia Johanna Josefa; 12 January 1740 – 25 January 1741), was the third child and daughter of Archduchess Maria Theresa of Austria, later Holy Roman Empress and Duke Francis of Lorraine.
María Isabella of Spain
Maria Isabella of Spain (María Isabel de Borbón y Borbón-Parma; 6 July 1789 – 13 September 1848) was an infanta of Spain and Queen consort of the Two Sicilies.
Prince Francis, Count of Trapani
Prince Francis of the Two Sicilies, Count of Trapani
(Full Italian name: "Francesco di Paola Luigi Emanuele, Principe di Borbone delle
Due Sicilie"; 13 August 1827 – 24 September 1892) was a member of the House of Bourbon-Two Sicilies.
Archduchess Maria Theresa of Austria (1762–1770)
Archduchess Maria Theresa of Austria (20 March 176223 January 1770) was a daughter of Joseph II, Holy Roman Emperor, and his first wife, Isabella of Parma.
Archduchess Maria Isabella of Austria
Archduchess Maria Isabella of Austria, Princess of Tuscany (21 May 1834 – 14 July 1901), was an Archduchess of Austria and Princess of Tuscany by birth and Countess of Trapani by marriage to her uncle Prince Francis, Count of Trapani.
Maria Isabella was born in Florence, Grand Duchy of Tuscany, as the daughter of Leopold II, Grand Duke of Tuscany and his second wife, Princess Maria Antonia of Bourbon-Two Sicilies.
Archduchess Maria Elisabeth of Austria (1737–1740)
Archduchess Maria Elisabeth of Austria( Full name( German):" Maria Elisabeth Amalia Antonia Josefa Gabriele Johanna Agathe"; 5 February 1737 – 7 June 1740), was the eldest child and daughter of Archduchess Maria Theresa of Austria, later Queen of Hungary and Bohemia, and Duke Francis of Lorraine, later Francis I, Holy Roman Emperor.

Question: When is Archduchess Maria Isabella Of Austria's husband's birthday?
Answer: 13 August 1827