Duchess Maria Elisabeth in Bavaria
Duchess "Maria Elisabeth" Amalie Franziska in Bavaria (5 May 1784 – 1 June 1849) was a Duchess in Bavaria as a member of the Palatine Birkenfeld-Gelnhausen line of the House of Wittelsbach and through her marriage to Louis-Alexandre Berthier became Princess of Wagram and Princess of Neuchâtel.
Maria Sophie of Bavaria
Maria Sophie Amalie, Duchess in Bavaria( 4 October 1841, Possenhofen Castle – 19 January 1925, Munich) was the last Queen consort of the Kingdom of the Two Sicilies.
She was one of the ten children of Maximilian Joseph, Duke in Bavaria and Princess Ludovika of Bavaria.
She was born as Duchess Maria Sophia in Bavaria.
She was the younger sister of the better- known Elisabeth of Bavaria(" Sisi") who married Emperor Franz Joseph I of Austria.
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.
Elisabeth of Bavaria, Queen of Belgium
Queen Elisabeth of Belgium( born Duchess Elisabeth in Bavaria; 25 July 187623 November 1965) was Queen consort of the Belgians as the spouse of King Albert I, and a Duchess in Bavaria by birth.
She was the mother of King Leopold III of Belgium and of Queen Marie- José of Italy, and grandmother of kings Baudouin and Albert II of Belgium, and Grand Duchess Joséphine- Charlotte of Luxembourg.
Archduchess Maria Elisabeth of Austria (1743–1808)
Maria Elisabeth of Austria
( Maria Elisabeth Josepha Johanna Antonia; 13 August 1743 – 22 September 1808) was the sixth child and the third surviving daughter of Maria Theresa I, Holy Roman Empress and Francis of Lorraine.
She was an abbess of the Convent for Noble Ladies in Innsbrück from 1780 until 1806.
Archduchess Gisela of Austria
Archduchess Gisela of Austria (Gisela Louise Marie; 12 July 1856 – 27 July 1932) was the second daughter and eldest surviving child of Emperor Franz Joseph I of Austria and Elisabeth in Bavaria.
Napoléon Alexandre Berthier, 2nd Prince of Wagram
Napoléon Alexandre Louis Joseph Berthier, 2nd Prince of Wagram( 11 September 1810, Paris10 February 1887, Paris) was a French politician and nobleman.
Son of Louis- Alexandre Berthier, 1st Prince of Wagram, and Duchess Maria Elisabeth in Bavaria( and by his mother, grandnephew of King Maximilian I of Bavaria).
Louis-Alexandre Berthier
Louis-Alexandre Berthier (20 November 1753 – 1 June 1815), 1st Prince of Wagram, Sovereign Prince of Neuchâtel, was a French Marshal and Vice-Constable of the Empire, and Chief of Staff under Napoleon.
Duke Franz Joseph in Bavaria
Duke Franz Joseph in Bavaria, full German name:" Franz Joseph Michael Karl
Maria Evaristus Quirinus Ottokar Herzog in Bayern"( 23 March 1888, Schloss Tegernsee, Kingdom of Bavaria – 23 September 1912, Munich, Kingdom of Bavaria) was a Duke in Bavaria and member of the House of Wittelsbach.
Franz Joseph was the fifth and youngest child of Duke Karl- Theodor in Bavaria and his wife Infanta Maria Josepha of Portugal.
Franz Joseph was the brother of Duke Ludwig Wilhelm in Bavaria and sisters Duchess Amalie in Bavaria, Duchess Sophie Adelheid in Bavaria, Duchess Elisabeth in Bavaria and Duchess Marie Gabrielle in Bavaria.
Maria Elisabeth of Saxony (1736–1818)
Princess Maria Elisabeth of Saxony("Maria Elisabeth Apollonia Casimira Francisca Xaveria"; 2 February 1736 – 24 December 1818) was a German noblewoman and titular Princess of Poland, Lithuania and Saxony of the Albertine branch of the House of Wettin.

Question: What nationality is Duchess Maria Elisabeth In Bavaria's husband?
Answer: French