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Mary Victoria Hamilton
Hereditary Princess of Monaco

Mary Victoria Douglas-Hamilton
Spouse Albert I of Monaco
Tassilo Festetics von Tolna
Louis II of Monaco
Countess Mária Matild Festetics de Tolna
Prince György Tasziló Festetics de Tolna
Countess Alexandra Olga Festetics de Tolna
Countess Karola Friderika Festetics de Tolna
Father William Hamilton, 11th Duke of Hamilton
Mother Princess Marie Amelie of Baden
Born 11 December 1850
Hamilton Palace, Scotland
Died 14 May 1922 (aged 71)
Budapest, Kingdom of Hungary

Lady Mary Victoria Douglas-Hamilton, also known as the Lady Mary Victoria Hamilton (11 December 1850 – 14 May 1922) was the Lanarkshire-born, Scottish great-grandmother of Prince Rainier III of Monaco, the fashion designer Prince Egon von Fürstenberg, the socialite and actress Princess Ira von Fürstenberg and the Czech Minister of Foreign Affairs Prince Karel Schwarzenberg. She was the daughter of William Alexander Anthony Archibald Hamilton, 11th Duke of Hamilton and of his wife, Princess Marie Amelie Elizabeth Caroline of Baden. Through her maternal grandmother, she was a third cousin of Emperor Napoléon III of France. She was a first cousin of Queen Carola of Saxony, Queen Stephanie of Portugal, King Carol I of Romania, and Princess Marie, Countess of Flanders (mother of King Albert I of the Belgians).

Hereditary Princess of Monaco

On 21 September 1869 at Château de Marchais, Mary married Prince Albert, the only child and heir of Charles III, Prince of Monaco. Mary Victoria bore Prince Albert a single son, Louis who would take the throne of Monaco upon his father's death. Their marriage was annulled by the Church on 3 January 1880 (although civilly it was dissolved only on 28 July 1880 by the Order of Prince Charles III).

Countess of Festetics de Tolna

On 2 June 1880, Mary Victoria was married to Count Tassilo Festetics de Tolna. The couple had four children:

  • Countess Mária Matild Georgina Festetics de Tolna (24 May 1881, Baden-Baden – 2 Mar 1953, Strobl am Wolfgangsee), who married Prince Karl Emil von Fürstenberg (Grandfather of Princess Ira von Fürstenberg, Prince Egon von Fürstenberg and Prince Karel Schwarzenberg)
  • Prince György Tasziló József Festetics de Tolna (4 September 1882, Baden-Baden – 4 August 1941, Keszthely); who married to Countess Marie Franziska von Haugwitz.
  • Countess Alexandra Olga Eugénia Festetics de Tolna (1 March 1884, Baden-Baden – 23 April 1963, Vienna); who was married first to Prince Karl von Windisch-Grätz (brother-in-law of Archduchess Elisabeth Marie of Austria) and later to Prince Erwin zu Hohenlohe-Waldenburg-Schillingsfürst,
  • Countess Karola Friderika Mária Festetics de Tolna (17 January 1888, Vienna — 21 January 1951, Strobl); who was married to Baron Oskar Gautsch von Frankenthurn.

During her 40 year marriage to Graf, and later Prince Festetics, Lady Mary oversaw enlargement and improvement of the Festetics' main seat, Festetics Palace, and its gardens, in Keszthely, western Hungary. On numerous occasions, she and her husband would entertain her brother the Duke of Hamilton, and his great friend, the Prince of Wales. There are still portraits extant 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 the Lady Mary and her husband.

Further, the Helikon Library at the Palace contains many works that were brought to Keszthely by the Lady Mary from her father and brother's collections at Hamilton Palace.

The Palace grounds, on the shores of Lake Balaton, contains a Mausoleum to the Festetics and is the final resting place of the Lady Mary and her husband.

Titles and styles

  • 11 December 1850 – 21 September 1869: Lady Mary Victoria Douglas-Hamilton
  • 21 September 1869 – 3 January 1880: Her Serene Highness The Hereditary Princess of Monaco
  • 3 January 1880 – 2 June 1880: Lady Mary Victoria Douglas-Hamilton
  • 2 June 1880 – 21 June 1911: Countess Mary Victoria Festetics de Tolna
  • 21 June 1911 – 14 May 1922: Her Serene Highness Princess Mary Victoria Festetics de Tolna


Ancestors of Mary Victoria Douglas-Hamilton
16. James Hamilton, 5th Duke of Hamilton
8. Archibald Hamilton, 9th Duke of Hamilton
17. Anne Spencer
4. Alexander Hamilton, 10th Duke of Hamilton
18. Alexander Stewart, 6th Earl of Galloway
9. Lady Harriet Stewart
19. Lady Catherine Cochrane
William Beckford
20. William Beckford (politician)
10. William Thomas Beckford
21. Maria Hamilton
5. Susan Beckford
22. Charles Gordon, 4th Earl of Aboyne
11. Lady Margaret Gordon
23. Lady Margaret Stewart
Claude de Beauharnais, 2nd Count des Roches-Baritaud
24. Charles Frederick, Grand Duke of Baden
12. Charles Louis, Hereditary Prince of Baden
25. Landgravine Caroline Louise of Hesse-Darmstadt
6. Charles, Grand Duke of Baden
26. Louis IX, Landgrave of Hesse-Darmstadt
13. Landgravine Amalie of Hesse-Darmstadt
27. Countess Palatine Caroline of Zweibrücken
3. Princess Marie Amelie of Baden
28. Claude de Beauharnais, 1st Count des Roches-Baritaud
14. Claude de Beauharnais (1756–1819)
29. Marie-Anne-Françoise Mouchard
7. Stéphanie de Beauharnais
30. Claude François de Lézay-Marnézia, 3rd Marquis of Lézay
15. Claudine Françoise de Lézay-Marnézia
31. Marie Claudine de Nettancourt-Vaubécourt

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