Princess María de la Esperanza of Bourbon-Two Sicilies
Princess "María de la Esperanza" Amalia Raniera María Rosario Luisa Gonzaga of Bourbon-Two Sicilies (14 June 1914, Madrid, Spain – 8 August 2005, Villamanrique de la Condesa, Spain) was the youngest daughter of Prince Carlos of Bourbon-Two Sicilies and his wife Princess Louise of Orléans.
Maria Esperanza's husband Prince Pedro Gastão of Orléans-Braganza, was one of two claimants to the Brazilian throne, and head of the Petrópolis branch of the Brazilian Imperial House.
Maria Esperanza was also an aunt of Juan Carlos I of Spain, son of her sister Princess Maria Mercedes of Bourbon-Two Sicilies.
Maria Carolina Zamoyska
Princess Maria Carolina of Bourbon- Two Sicilies, Duchess of Castro( née Countess Maria Carolina Zamoyska)( 22 September 1896 in Kraków, Austria- Hungary – 9 May 1968 in Marseille, France) was the wife of Prince Ranieri, Duke of Castro, claimant to the headship of the House of Bourbon- Two Sicilies.
Carolina was the sixth child and youngest daughter of Polish nobleman Andrzej Przemysław Zamoyski, Count Zamoyski and his wife Princess Maria Carolina of Bourbon- Two Sicilies.
Carolina's maternal grandparents were Prince Francis of Bourbon- Two Sicilies, Count of Trapani and his wife Archduchess Maria Isabella of Austria, Princess of Tuscany.
Prince Louis, Count of Aquila
Prince "Luigi" Carlo Maria Giuseppe of Bourbon-Two Sicilies, Count of Aquila (19 July 1824 – 5 March 1897) was a member of the House of Bourbon-Two Sicilies.
Princess Urraca of Bourbon-Two Sicilies
Princess Urraca of Bourbon- Two Sicilies( July 14, 1913, Nymphenburg Palace, Munich, Kingdom of Bavaria – May 3, 1999, Sigmaringen, Baden- Württemberg, Germany) was a member of the House of Bourbon- Two Sicilies and a Princess of Bourbon- Two Sicilies.
Archduchess María of Austria (b. 1967)
Archduchess María of Austria( née Princess María of Bourbon- Two Sicilies; born 5 April 1967) is a princess of Bourbon- Two Sicilies and the wife of Archduke Simeon of Austria.
Prince Carlo, Duke of Castro
Prince Carlo of Bourbon- Two Sicilies, Duke of Castro( born 24 February 1963) is a claimant to the headship of the House of Bourbon- Two Sicilies.
Duchess Elisabeth of Württemberg (b. 1933)
Duchess Elisabeth of Württemberg( born 2 February 1933) is a member of the House of Württemberg and a Duchess of Württemberg by birth and through her marriage to Prince Antoine of Bourbon- Two Sicilies, a member of the House of Bourbon- Two Sicilies and a Princess of Bourbon- Two Sicilies.
Princess Louise of Orléans
Louise Françoise Marie Laure d'Orléans (24 February 1882 – 18 April 1958) was a Princess of the Two-Sicilies and maternal grandmother of King Juan Carlos I of Spain.
Louise was the youngest daughter of Philippe d'Orléans (1838–1894), Count of Paris and claimant to the French throne as "Philippe VII".
Her mother was Princess Marie Isabelle d'Orléans (1848–1919), daughter of Antoine, Duke of Montpensier, and Infanta Luisa Fernanda of Spain.
Leopold, Prince of Salerno
Leopoldo Giovanni Giuseppe Michele of Bourbon- Two Sicilies, Prince of Salerno( 2 July 1790, Naples, Kingdom of Naples – 10 March 1851, Naples, Kingdom of the Two Sicilies) was a member of the House of Bourbon- Two Sicilies and a Prince of Bourbon- Two Sicilies.
Prince Philip of Bourbon-Two Sicilies
Prince Philip of Bourbon- Two Sicilies( Filippo Maria Alfonso Antonio Ferdinando Francesco di Paola Lodovico Enrico Alberto Taddeo Francesco Saverio Uberto; 10 December 1885 – 9 March 1949) was a member of the House of Bourbon- Two Sicilies and a Prince of Bourbon- Two Sicilies.

Question: What nationality is Princess María De La Esperanza Of Bourbon-Two Sicilies's mother?
Answer: French