#OnThisDay in 1878 Mercedes of Orléans died of typhoid fever, aged only 18. She was born in 1860 as the daughter of Antoine of Orléans, Duke of Montpensier, and Infanta Luisa Fernanda of Spain. On 23 January 1878, she married her first cousin King Alfonso XII of Spain.

#OnThisDay in 1644 Henrietta of England, Duchess of Orléans, was born as the daughter of King Charles I of England, Scotland, and Ireland and Henrietta Maria of France.

#OnThisDay in 1899 Grand Duchess Maria Nikolaevna of Russia was born as the daughter of Emperor Nicholas II of Russia and Alexandra Feodorovna.

#OnThisDay in 1681 Hedvig Sophia of Sweden was born as the daughter of King Charles XI of Sweden and Ulrike Eleonora of Denmark. On 12 May 1698, she married her cousin, Frederick IV, Duke of Holstein-Gottorp. They had one son before her husband died in 1702. She died on 22 December 1708 of smallpox

#OnThisDay in 1575 Anne Catherine of Brandenburg was born as the daughter of Joachim Frederick, the future Margrave of Brandenburg, and Catherine of Brandenburg-Küstrin. On 27 November 1597, she married King Christian IV of Denmark, and they had seven children. She died on 8 April 1612.

#OnThisDay in 1914 Princess Sophie of Greece and Denmark was born as the fourth daughter of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg.

#OnThisDay in 1562 Anne of Ostfriesland was born as the daughter of Edzard II, Count of East Frisia and Catherine Vasa of Sweden. She died on 21 April 1621.

#OnThisDay in 1911 43-year-old Archduchess Marie Valerie of Austria gave birth to her tenth child – a daughter named Agnes. The little girl lived for just eight hours.

#OnThisDay in 2002 Humaira Begum, Queen of Afghanistan, died.

NEW: Princess Eléonore of Belgium made her tiara debut during the state banquet for Emperor Naruhito and Empress Masako of Japan.

#OnThisDay in 1884 Sadako Kujō was born as the daughter of Duke Michitaka Kujō and Ikuko Noma. On 10 May 1900, she married the future Emperor Yoshihito of Japan, and they had four sons together. She died on 17 May 1951 and received the posthumous name of Empress Teimei.

#OnThisDay in 1568 Gunilla Bielke, Queen of Sweden, was born as the daughter of Johan Axelsson Bielke and Margareta Axelsdotter Posse.

#OnThisDay in 1436 Margaret Stewart married Louis, Dauphin of France, later King Louis XI of France.

#OnThisDay in 1794 Princess Ida of Saxe-Meiningen was born as the daughter of George I, Duke of Saxe-Meiningen and Luise Eleonore of Hohenlohe-Langenburg. On 30 May 1816, she married Prince Bernhard of Saxe-Weimar-Eisenach and they had eight children. She died on 4 April 1852.

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*affiliate* Out now! 🇺🇸

*affiliate* Out now! 🇬🇧

#OnThisDay in 1894 Nazli Sabri, Queen of Egypt, was born as the daughter of Abdur Rahim Sabri Pasha and Tawfika Khanum Sharif.

#OnThisDay in 1870 Queen Isabella II of Spain abdicated in favour of her son King Alfonso XII.

#OnThisDay in 1533 Mary Tudor, Queen of France and Duchess of Suffolk, died.

#OnThisDay in 1755 Wilhelmina Louisa of Hesse-Darmstadt was born as the daughter of the future Louis IX, Landgrave of Hesse-Darmstadt, and Countess Palatine Caroline of Zweibrücken. On 29 September 1773, she married the future Emperor Paul I of Russia. She died on 15 April 1776.

#OnThisDay in 1242 Beatrice of England was born as the daughter of Henry III, King of England, and Eleanor of Provence. She married the future John II, Duke of Brittany and they had six children. Beatrice died on 24 March 1275.

#OnThisDay in 1371 the future Queen Joanna II of Naples was born as the daughter of the future King Charles III of Naples and Margaret of Durazzo.

#OnThisDay in 1741 Maria Theresa of Austria was crowned as Queen of Hungary.

#OnThisDay in 1911 Princess Maria Clotilde of Savoy died. She was born in 1843 as the daughter of the future King Victor Emmanuel II of Italy and Archduchess Adelaide of Austria. On 30 January 1859, she married Napoléon Joseph Charles Paul Bonaparte, and they had three children together.

#OnThisDay in 125 B.C.E. Empress Dowager Wang Zhi died.

#OnThisDay in 1899 Princess Margaretha of Sweden was born as the daughter of Prince Carl, Duke of Västergötland and Princess Ingeborg of Denmark. On 22 May 1919, she married Prince Axel of Denmark and they had two children together. She died on 4 January 1977.

#OnThisDay in 1964 Princess Auguste of Bavaria died. She was born in 1875 as the daughter of Prince Leopold of Bavaria and Archduchess Gisela of Austria. On 15 November 1893, she married Joseph August, Archduke of Austria and they had six children together, though two did not survive to adulthood.

#OnThisDay in 1805 Infanta Maria da Assunção of Braganza was born as the daughter of the future King John VI of Portugal and Carlota Joaquina of Spain. She never married. She died on 7 January 1834.

#OnThisDay in 1485 Elizabeth of Denmark was born as the daughter of King John of Denmark and Christina of Saxony. On 10 April 1502, she married Joachim I Nestor, Elector of Brandenburg and they had five children. She died on 10 June 1555.

#OnThisDay in 1704 Duchess Anna Dorothea of Saxe-Weimar died. She was born in 1657 as the daughter of the future John Ernest II, Duke of Saxe-Weimar and Princess Christine Elisabeth of Schleswig-Holstein-Sonderburg. She was elected as Princess-Abbess of Quedlinburg in 1684.

#OnThisDay in 1465 Isabella del Balzo was born as the daughter of Pietro del Balzo, Duke of Andria, and Maria Donata Orsini. On 28 November 1487, she married the future King Frederick IV of Naples, and they had five children, though not all lived to adulthood. She died in 1533.

#OnThisDay in 1343 Joan of Valois was born as the daughter of the future King John II of France and Bonne of Luxembourg. On 12 February 1352, she married Charles the Bad, King of Navarre. They had seven children, though not all lived to adulthood. She died on 3 November 1373.

#OnThisDay in 1824 Princess Agnes of Anhalt-Dessau was born as the daughter of Leopold IV, Duke of Anhalt and Princess Frederica of Prussia. On 28 April 1853, she married the future Ernst I, Duke of Saxe-Altenburg and they had one surviving daughter together. She died on 23 October 1897.

#OnThisDay in 1314 Philippa of Hainault, Queen of England, was born as the daughter of William I, Count of Hainault, and Joan of Valois.

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NEW: Empress Taimu was one of the most respected empresses of the Tang Dynasty. She was the wife of the first Tang emperor, Emperor Gaozu of Tang. She did not live to see Emperor Gaozu ascend the throne.

#OnThisDay in 1940 Hope Cooke, Queen of the 12th Chogyal of Sikkim, was born as the daughter of John J. Cooke and Hope Noyes.

#OnThisDay in 1519 Lucrezia Borgia, Duchess of Ferrara, died ten days after giving birth to a short-lived daughter.

#OnThisDay in 1291 Eleanor of Provence, Queen of England, died.

#OnThisDay in 1735 Princess Frederica Caroline of Saxe-Coburg-Saalfeld was born as the daughter of the future Francis Josias, Duke of Saxe-Coburg-Saalfeld and Princess Anna Sophie of Schwarzburg-Rudolstadt. She died on 18 February 1791.

#OnThisDay in 1921 Princess Marie-Louise of Madagascar married André Bossard.

#OnThisDay in 679 Æthelthryth, Queen of Northumbria, died.

#OnThisDay in 1703 Marie Leszczyńska, Queen of France, was born as the daughter of the future King Stanisław I of Poland and Catherine Opalińska.

#OnThisDay in 1862 Infanta María de la Paz of Spain was born as the daughter of Francisco, Duke of Cádiz and Queen Isabella II of Spain. On 2 April 1883, she married Prince Ludwig Ferdinand of Bavaria and they had three children together. She died on 4 December 1946.

#OnThisDay in 1695 Louise Anne of Bourbon was born as the daughter of Louis III, Prince of Condé, and Louise Françoise of Bourbon. She never married but was romantically involved with the Duke of Richelieu. She died on 8 April 1758.

#OnThisDay in 1848 Archduchess Maria Leopoldine of Austria-Este died. She was born in 1776 as the daughter of Archduke Ferdinand of Austria-Este and Maria Beatrice Ricciarda d'Este. She died in a carriage accident.

#OnThisDay in 1356 Margaret II, Countess of Hainaut died. She was born in 1308 as the daughter of William I, Count of Hainaut, and Joan of Valois. In 1324 she married Louis IV, Holy Roman Emperor and they had ten children, though not all lived to adulthood.

#OnThisDay in 1859 Grand Duchess Maria Pavlovna of Russia died. She was born in 1786 as the daughter of Paul I of Russia and Sophie Dorothea of Württemberg. On 3 August 1804, she married Charles Frederick, Grand Duke of Saxe-Weimar-Eisenach and they had 4 children, though not all lived to adulthood.

#OnThisDay in 1859 Grand Duchess Maria Pavlovna of Russia died. She was born in 1786 as the daughter of Paul I of Russia and Sophie Dorothea of Württemberg. On 3 August 1804, she married Charles Frederick, Grand Duke of Saxe-Weimar-Eisenach and they had four children.