Princess Maria Immaculata of Bourbon-Two Sicilies (1844–1899)
Princess Maria Immaculata of Bourbon-Two Sicilies (Full Italian name: "Maria Immacolata Clementina, Principessa di Borbone delle
Due Sicilie")
(14 April 1844, Naples, Kingdom of the Two Sicilies – 18 February 1899, Vienna, Austria) was fifth child and second-eldest daughter of Ferdinand II of the Two Sicilies and his wife Maria Theresa of Austria.
Through her marriage to Archduke Karl Salvator of Austria, Maria Immaculata became an Austrian Archduchess.
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 Elisabeth Franziska of Austria (1892–1930)
Archduchess Elisabeth Franziska Marie Karoline Ignatia Salvator (27 January 1892 – 29 January 1930) was the eldest daughter of Archduke Franz Salvator of Austria and Archduchess Marie Valerie of Austria.
Through her mother, she was a granddaughter of Emperor Franz Joseph I of Austria.
Archduke Anton of Austria
Archduke Anton of Austria (Anton Maria Franz Leopold Blanka Karl Joseph Ignaz Raphael Michael Margareta Nicetas von Habsburg-Lorraine; Vienna, 20 March 1901 – Salzburg, 22 October 1987) was an Archduke of Austria and Prince of Tuscany.
He was the seventh of ten children born to Archduke Leopold Salvator of Austria, Prince of Tuscany, and Infanta Blanca of Spain, daughter of Carlos, Duke of Madrid.
Archduke Leopold Salvator of Austria
Archduke Leopold Salvator, Prince of Tuscany
(Leopold Salvator Maria Joseph Ferdinand Franz von Assisi Karl Anton von Padua Johann Baptist Januarius Aloys Gonzaga Rainer Wenzel Galius von Österreich-Toskana)
(15 October 1863 – 4 September 1931), was the son of Archduke Karl Salvator of Austria and Princess Maria Immaculata of Bourbon-Two Sicilies.
Archduke Rainer of Austria (1895–1930)
Archduke Rainer of Austria;( 21 November 1895 – 25 May 1930) was a member of the House of Habsburg- Lorraine, a member of the Tuscan branch of the Imperial House of Habsburg, an Archduke of Austria and Prince of Tuscany by birth.
He was the eldest son Archduke Leopold Salvator of Austria, Prince of Tuscany.
He served as officer in the Austrian army during World War I.
At the fall of the Habsburg dynasty, he remained in Vienna and worked for a time as taxi driver.
He died unmarried at the age of 34 from blood- poisoning.
Archduchess Margaretha of Austria
Archduchess Margaretha of Austria(( 8 May 1894 – 21 January 1986) 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.
After the fall of the Austro- Hungarian Empire, she lived in exile, first in Barcelona and from the 1930s until the end of her life in Italy.
In 1937, she married an Italian diplomat, Marchese Francesco Maria Taliani de Marchio.
The couple, who had married in their forties, did not have children.
Archduchess Assunta of Austria
Archduchess Assunta of Austria ;( 10 August 1902 – 24 January 1993) was the youngest daughter of Archduke Leopold Salvator of Austria and Infanta Blanca of Spain.
She was a member of the Tuscan branch of the Imperial House of Habsburg, an Archduchess of Austria and Princess of Tuscany by birth.
Born and raised in the twilight years of the Austrian Empire, Archduchess Assunta lived in exile in Barcelona, Spain after the fall of the Habsburg monarchy.
She entered religious life in a convent in Barcelona, but was forced to leave it in 1936 due to disturbances during the Spanish Civil War.
In 1939, she married Joseph Hopfinger, a Polish doctor.
In 1942 the couple emigrated to the United States.
Archduchess Assunta and her husband had two daughters, but they divorced in 1950.
She moved to San Antonio, Texas where she had a variety of jobs living in anonymity until her death.
Archduchess Immaculata of Austria
Archduchess Immaculata of Austria;( 9 September 1892 – 3 September 1971) was a daughter of Archduke Leopold Salvator of Austria.
She was member of the Tuscan branch of the Imperial House of Habsburg, an Archduchess of Austria and Princess of Tuscany by birth.
After the fall of the Austro Hungarian Empire, she lived in exile, first in Barcelona and from the 1930s until the end of her life in Italy.
In 1932, she married an Italian aristocrat, Igino Neri-Serneri.
The couple remained childless.
Archduchess Dolores of Austria
Archduchess Dolores of Austria;( 5 May 1891 – 10 April 1974) was a daughter of Archduke Leopold Salvator of Austria.
She was member of the Tuscan branch of the Imperial House of Habsburg, an Archduchess of Austria and Princess of Tuscany by birth.
After the fall of the Austro Hungary Empire, she lived under reduced circumstances with her family in Spain, Austria, and Italy.
She died unmarried.

Question: Who is the maternal grandfather of Archduke Leopold Salvator Of Austria?
Answer: Ferdinand II of the Two Sicilies