Princess Maria Teresa of Bourbon-Two Sicilies (1867–1909)
Princess" Maria Teresa" Maddalena of Bourbon- Two Sicilies( Full Italian name:" Principessa Maria Teresa Maddalena di Borbone delle Due Sicilie")( 15 January 1867, Zürich, Switzerland – 1 March 1909, Cannes, France) was the only child of Prince Louis of Bourbon- Two Sicilies, Count of Trani( heir apparent of the defunct throne of the Two Sicilies) and his wife Duchess Mathilde Ludovika in Bavaria.
Maria Teresa was a member of the House of Bourbon- Two Sicilies and became a member of the House of Hohenzollern- Sigmaringen and titular Princess of Hohenzollern through her marriage to Prince Wilhelm of Hohenzollern( later Prince of Hohenzollern).
She was called" Mädi" in the family and had a lifelong friendship with her cousin the Archduchess Marie Valerie of Austria.
Empress Elisabeth of Austria
Empress Elisabeth of Austria (born Duchess Elisabeth in Bavaria; 24 December 1837 – 10 September 1898) was Empress of Austria and Queen of Hungary by marriage to Emperor Franz Joseph I.
Elisabeth was born into the royal Bavarian House of Wittelsbach.
Nicknamed Sisi, she enjoyed an informal upbringing before marrying Emperor Franz Joseph
I at the age of sixteen.
The marriage thrust her into the much more formal Habsburg court life, for which she was unprepared and which she found uncongenial.
Early in the marriage she was at odds with her mother-in-law, Archduchess Sophie, who took over the rearing of Elisabeth's daughters, one of whom, Sophie, died in infancy.
The birth of the heir apparent, Crown Prince Rudolf, improved her standing at court, but her health suffered under the strain, and she would often visit Hungary for its more relaxed environment.
She came to develop a deep kinship with Hungary, and helped to bring about the dual monarchy of Austria–Hungary in 1867.
The death of her only son and his mistress Mary Vetsera, in a murder–suicide at his hunting lodge at Mayerling in 1889 was a blow from which Elisabeth never recovered.
She withdrew from court duties and travelled widely, unaccompanied by her family.
In 1890, she had a palace built on the Greek Island of Corfu that she visited often.
The palace Achilleion, featuring an elaborate mythological motif, served as a refuge.
She was obsessively concerned with maintaining her youthful figure and beauty, which were already legendary during her life.
While travelling in Geneva in 1898, she was mortally wounded by an Italian anarchist named Luigi Lucheni.
Elisabeth was the longest serving Empress of Austria at 44 years.
Archduchess Marie Valerie of Austria
Archduchess Marie Valerie of Austria (22 April 1868 – 6 September 1924) was the third daughter and fourth and last child of Franz Joseph I of Austria and Elisabeth of Bavaria.
Her given name was Marie Valerie Mathilde Amalie, but she was usually called Valerie.
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.
Archduchess Marie Astrid of Austria
Archduchess Marie Astrid of Austria( née" Princess Marie Astrid of Luxembourg"; born 17 February 1954 at Castle Betzdorf) is the elder daughter and eldest child of Grand Duke Jean of Luxembourg and Joséphine- Charlotte of Belgium, and the wife of Archduke Carl Christian of Austria.
Valerie, Margravine of Baden
Archduchess Valerie of Austria( born 23 May 1941 in Vienna, Ostmark, Germany) is a member of the Tuscan line of the House of Habsburg and an Archduchess of Austria and a Princess of Tuscany by birth.
Through her marriage to Maximilian, Margrave of Baden, Valerie is a member of the House of Zähringen and Margravine consort of Baden.
Duchess Amalie in Bavaria
Duchess" Amalie" Maria in Bavaria( Full German name:" Amalie Maria, Herzogin in Bayern")( 24 December 1865 – 26 May 1912) was born in Munich, Kingdom of Bavaria, the only child of Duke Karl- Theodor in Bavaria and his first wife Princess Sophie of Saxony.
Amalie was a member of the House of Wittelsbach and a Duchess in Bavaria by birth.
She was a member of the House of Württemberg, Duchess of Urach and Countess of Württemberg through her marriage to Wilhelm, 2nd Duke of Urach.
She was called by the French version of her name, Amélie, and was lifelong friends with her cousin, Archduchess Marie Valerie of Austria.
Louise d'Orléans (1869–1952)
Princess Louise d'Orléans (Louise Victoire Marie Amélie Sophie; 19 July 1869 – 4 February 1952) was a French princess of the House of Orléans and a member of the Royal Family of Bavaria.
Throughout her life Louise remained very close to her first cousin, the Austrian archduchess Marie Valerie of Habsburg-Lorraine.
Archduchess Hedwig of Austria
Archduchess Hedwig of Austria( Hedwig Maria Immakulata Michaela Ignatia; 24 September 1896 in Bad Ischl – 1 November 1970 in Hall in Tirol) was the second daughter of Archduke Franz Salvator of Austria and his wife, Marie Valerie of Austria.
She was a granddaughter of Emperor Franz Joseph I and Duchess Elisabeth in Bavaria.
Archduchess Maria Carolina of Austria (1740–1741)
Archduchess Maria Carolina of Austria (
Maria Carolina Ernestina Antonia Johanna Josefa; 12 January 1740 – 25 January 1741), was the third child and daughter of Archduchess Maria Theresa of Austria, later Holy Roman Empress and Duke Francis of Lorraine.

Question: When did Archduchess Marie Valerie Of Austria's mother die?
Answer: 10 September 1898