Maria Theresa of Austria-Este (1849–1919)
Maria Theresa of Austria-Este (Maria Theresa Henriette Dorothee; 2 July 1849 – 3 February 1919) was the last Queen of Bavaria.
She was the daughter and only child of Archduke Ferdinand of Austria-Este and his wife, Archduchess Elisabeth of Austria.
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.
Archduke Rainer Joseph of Austria
Archduke Rainer of Austria (30 September 1783 – 16 January 1853) was a Viceroy of the Kingdom of Lombardy-Venetia from 1818 to 1848.
He was also an Archduke of Austria, Prince Royal of Hungary and Bohemia.
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 Rainer Ferdinand of Austria
Archduke Rainer Ferdinand Maria Johann Evangelist Franz Ignaz of Austria (11 January 1827 – 27 January 1913), a member of the House of Habsburg-Lorraine and nephew of Emperor Francis II, was an Austrian politician who served as Minister-President of Austria from 1861 to 1865.
Archduchess Yolande of Austria
Archduchess Yolande of Austria( née Princesse Yolande Marie Jeanne Charlotte de Ligne; born 6 May 1923) is the widow of Archduke Carl Ludwig of Austria.
Eduard von Habsburg
Eduard von Habsburg( born January 12, 1967), also known as Archduke Eduard of Austria is Hungary ’s ambassador to the Holy See and Sovereign Military Order of Malta.
He is son of Archduke Michael of Austria( Archduke Joseph Francis's youngest child) and the great- great- grandson of Emperor Franz Joseph I.
He is married to Baroness Maria Theresia von Gudenus, descendant of Archduke Johann of Austria and has six children.
Princess Elisabeth of Savoy
Elisabeth of Savoy (Maria Francesca Elisabetta Carlotta Giuseppina; 13 April 1800 – 25 December 1856) was the Vicereine of the Kingdom of Lombardy-Venetia by marriage to Archduke Rainer of Austria.
She was the aunt and mother-in-law of Vittorio Emanuele II, the first king of a united Italy.
Archduke Otto of Austria (1865–1906)
Archduke Otto Franz Joseph Karl Ludwig Maria of Austria (21 April 1865 – 1 November 1906) was the second son of Archduke Karl Ludwig of Austria (younger brother of Emperor Franz Joseph I of Austria) and his second wife, Princess Maria Annunciata of Bourbon-Two Sicilies.
He was the father of Charles I of Austria, the last Emperor of Austria.

Question: When is Archduke Rainer Of Austria (1895–1930)'s father's birthday?
Answer: 15 October 1863