About Mary Victoria Douglas-Hamilton
Lived 1850 – 1922 (aged 71). Mary Victoria Douglas-Hamilton was a British, Monegasque and Austrian aristocrat.
Lady Mary Victoria Douglas-Hamilton, also known as Mary Victoria Hamilton (11 December 185014 May 1922), was a Scottish noblewoman who was the Hereditary Princess of Monaco by marriage to Albert, Hereditary Prince of Monaco.
Life Lady Mary was born as the youngest child and the only daughter of William Hamilton, 11th Duke of Hamilton and of his wife, Princess Marie Amelie of Baden.
Hereditary Princess of Monaco Lady Mary's first marriage, on 21 September 1869 at Château de Marchais, was to Prince Albert, only child and heir apparent of Charles III, Prince of Monaco. The marriage was arranged upon the wish of the Monegasque princely house, as it had long been an ambition of his mother and grandmother to marry him to a member of the British royal house. While Queen Victoria refused a match between Albert and one of her closer family members, Lady Mary was suggested as a suitable replacement. However, Lady Mary and Albert's marriage was annulled on 3 January 1880 and civilly dissolved on 28 July 1880 by order of Charles III. Lady Mary supposedly hated the heat of the Mediterranean area.
Lady Mary and Albert had a single son, Louis, who would take the throne of Monaco with the regnal name Louis II upon his father's death. Via Louis II, Lady Mary is the great-great-grandmother of the current Sovereign Prince of Monaco, Albert II.
Life in Hungary
Lady Mary’s second marriage, on 2 June 1880, was to Count Tassilo Festetics de Tolna. The couple had four children, Countess Mária Matild Georgina (1881–1953), who married Prince Karl Emil von Fürstenberg; Prince György (1882–1941); Countess Alexandra Olga Eugénia (1884–1963), who married Prince Karl von Windisch-Graetz; and Countess Karola Friderika Mária (1888—1951), who married Oskar Gautsch Freiherr von Frankenthurn.
During her 40-year marriage to Count, later Prince, Tassilo Festetics de Tolna, Lady Mary oversaw the enlargement and improvement of the main family seat, Festetics Palace, and its gardens, in Keszthely, western Hungary.
On numerous occasions, she and her husband entertained her brother the Duke of Hamilton and his great friend the Prince of Wales. There are still portraits hanging in the Palace of numerous members of her family, including one of her father in full Highland dress. Outside the palace, on either side of the main entrance, there are the armorial bearings of both Lady Mary and her husband.
The Helikon Library at the Palace contains many works that were brought to Keszthely by Lady Mary from her father’s and brother's collections at Hamilton Palace.
The Palace grounds, on the shores of Lake Balaton, contains a Festetics family Mausoleum which is the final resting place of Lady Mary and her husband.
Ancestry
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Important facts
People in Mary Victoria Douglas-Hamilton's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Mary Victoria Douglas-Hamilton's
Frequently asked questions
Who was Mary Victoria Douglas-Hamilton?
Monegasque princess
When was Mary Victoria Douglas-Hamilton born?
Mary Victoria Douglas-Hamilton was born on 11 December 1850 in Hamilton Palace.
When did Mary Victoria Douglas-Hamilton die?
Mary Victoria Douglas-Hamilton died on 14 May 1922 in Budapest.
What was Mary Victoria Douglas-Hamilton's occupation?
Mary Victoria Douglas-Hamilton was an aristocrat.
What nationality was Mary Victoria Douglas-Hamilton?
Mary Victoria Douglas-Hamilton was British, Monegasque and Austrian.
Sources & further reading
· Wikipedia: Mary Victoria Douglas-Hamilton
· DBpedia: Lady Mary Douglas-Hamilton
Cite this page
APA: Biography.guide. (2026). Mary Victoria Douglas-Hamilton. https://biography.guide/mary-victoria-douglas-hamilton/
MLA: "Mary Victoria Douglas-Hamilton." Biography.guide, https://biography.guide/mary-victoria-douglas-hamilton/.
Chicago: "Mary Victoria Douglas-Hamilton." Biography.guide. https://biography.guide/mary-victoria-douglas-hamilton/.
Data last updated: 2026-09-22 · Spot an error? Report a correction.
Portrait: Wikimedia Commons · author & licence
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