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.
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 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.
Archduke Karl Ludwig of Austria
Archduke Karl Ludwig Joseph Maria of Austria( 30 July
1833 – 19 May 1896) was the younger brother of Franz Joseph I of Austria( 1830 – 1916), the father of Archduke Franz Ferdinand of Austria( 1863 – 1914), whose assassination ignited World War I, and grandfather of the last emperor, Charles I.
Maria Anna of Bavaria (1551–1608)
Maria Anna of Bavaria (21 March 1551, Munich – 29 April 1608, Graz) was a politically active Archduchess of Austria by marriage to Archduke Charles II of Austria.
She played an important role in the counter reformation in Austria.
Archduke Maximilian of Austria-Este
Archduke Maximilian Joseph of Austria- Este( July 14, 1782 – June 1, 1863), the fourth son of Archduke Ferdinand of Austria- Este and younger brother of Francis IV, Duke of Modena.
He was grand master of the Teutonic Knights from 1835 to 1863.
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.
Princess Franziska of Hohenlohe-Waldenburg-Schillingsfürst
Princess Franziska of Hohenlohe-Waldenburg-Schillingsfürst
(Franziska Maria Anna; 21 June 1897 – 12 July 1989) was the wife of Archduke Maximilian Eugen of Austria.
Archduke Maximilian Ernest of Austria
Maximilian Ernest of Austria (17 November 1583 – 18 February 1616), was a German prince member of the House of Habsburg and by birth Archduke of Austria.
He was the son of Archduke Charles II of Austria, in turn son of Emperor Ferdinand I, and Maria Anna of Bavaria.
His elder brother Archduke Ferdinand, succeeded as Holy Roman Emperor in 1619.
Charles, Margrave of Burgau
Charles, Margrave of Burgau, also known as" Charles of Austria",( 22 November 1560 at Křivoklát Castle in Bohemia – 30 October 1618 in Überlingen), was the son of Archduke Ferdinand II of Austria and his first morganatic marriage to Philippine Welser.
He was the brother of Andrew of Austria.

Question: Where was the place of burial of Archduke Maximilian Ernest Of Austria's mother?
Answer: Graz