#OnThisDay in 1433 Princess Joan of France died. She was born in 1391as the daughter of King Charles VI of France and Isabeau of Bavaria. In 1396, she married the future John V, Duke of Brittany and they had seven children together, although three died in childhood.

#OnThisDay in 1871 Isabel, Princess Imperial of Brazil – acting as regent - signed a new anti-slavery act, The Law of Free Birth, which freed all children born of slaves after that date.

#OnThisDay in 1760 Maria Amalia of Saxony, Queen of Spain, died.

#OnThisDay in 1788 Augusta of Brunswick-Wolfenbüttel, Duchess Frederick of Württemberg, died.

As we look ahead to the abdication and "Trounwiessel" in Luxembourg, read more about the personal union with the Kingdom of the Netherlands.

#OnThisDay in 1125 Richeza of Berg died. She was born circa 1095 as the daughter of Henry I, Count of Berg and his wife Adelheid of Mochental. She married Vladislav I, Duke of Bohemia around 1111 but they had no children.

NEW: Imperial Consort Ding was an imperial consort to the infamous Cao Cao. She was originally his main wife. After the death of her stepson, Cao Ang, Imperial Consort Ding blamed her husband for his death. The death of Cao Ang caused Imperial Consort Ding’s marriage to fall apart.

#OnThisDay in 1657 Sofia Alekseyevna of Russia was born as the daughter of Tsar Alexis by his first wife, Maria Miloslavskaya. She died in 1704.

#OnThisDay in 823 Ermentrude of Orléans was born as the daughter of Odo, Count of Orléans and his wife Engeltrude. She married the future Charles the Bald, King of West Francia, in 842 and they had 10 children, though not all lived to adulthood. She died on 6 October 869.

#OnThisDay in 1862 Princess Maria Pia of Savoy married King Luís I of Portugal by proxy.

#OnThisDay in 1651 Erdeni Bumba married Emperor Shunzhi.

#OnThisDay in 1901 Princess Maria Alix of Saxony was born as the daughter of the future King Frederick Augustus III of Saxony and Archduchess Louise of Austria. On 25 May 1921, she married Franz Joseph, Prince of Hohenzollern-Emden and they had four children together. She died on 11 December 1990.

#OnThisDay in 1710 Hatice Sultan was born as the daughter of Sultan Ahmed III of the Ottoman Empire and Rukiye Kadın. In 1724, she married Hafız Ahmed Pasha but she was widowed in 1730. That same year, she married Halil Ağa and they had one son together. She died in 1738.

#OnThisDay in 1647 Princess Changping of the Ming dynasty died.

NEW: Happy 25th birthday to Princess Salma of Jordan!

As we look ahead to the abdication and "Trounwiessel" in Luxembourg, read more about Walferdange Castle and the Mother of Luxembourg.

As we look ahead to the abdication and "Trounwiessel" in Luxembourg, read more about the Grand Ducal Palace of Luxembourg.

#OnThisDay in 1290 Margaret, Maid of Norway died.

#OnThisDay in 1329 Anne of Bavaria, Queen of Germany and Bohemia, was born as the daughter of Rudolf II, Duke of Bavaria, and Anna of Carinthia.

#OnThisDay in 1796 Princess Ida of Waldeck and Pyrmont was born as the daughter of the future George I, Prince of Waldeck and Pyrmont and Princess Auguste of Schwarzburg-Sondershausen. She died on 12 April 1869.

#OnThisDay in 1462 Empress Dowager Sun died.

#OnThisDay in 1752 Ayşe Sultan died. She was born in 1696 as the daughter of Sultan Mustafa II of the Ottoman Empire and an unnamed mother. She was married three times but had no children.

#OnThisDay in 1980 Princess Anne of Denmark died.

*affiliate* #OnThisDay in 1890 the future Queen Wilhelmina of the Netherlands saw her dying father for the last time. Read more in our book:

#OnThisDay in 1862 Princess Maria Antonia Koháry died. She was born in 1797 as the daughter of Franz Josef, Count Koháry and his wife, Countess Maria Antoinetta Josefa von Waldstein-Wartenburg. On 30 November 1815, she married Prince Ferdinand of Saxe-Coburg and Gotha, and they had four children.

As we look ahead to the abdication and "Trounwiessel" in Luxembourg, read more about Grand Duchess Charlotte, the Grand Duchess who saved the monarchy.

#OnThisDay in 1907 Archduchess Louise of Austria, who was divorced from King Frederick Augustus III of Saxony, married pianist Enrico Toselli.

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A sculpture of Prince Albert, Queen Victoria's husband, which has been on display for the last 160 years at Windsor Castle, was found to have been made by his daughter, Victoria, Princess Royal and later German Empress. victoria/

#OnThisDay in 1826 Frederica of Baden, Queen of Sweden, died.

#OnThisDay in 1582 Archduchess Eleanor of Austria was born as the daughter of Archduke Charles II of Austria and Maria Anna of Bavaria. Several marriage prospects fell through, and she took the veil in 1607. She became blind and died at the age of 37 in 1620.

#OnThisDay in 1665 Archduchess Maria Anna of Austria, Electress of Bavaria, died.

#OnThisDay in 1615 Lady Arbella Stuart died in the Tower of London. L

#OnThisDay in 1890 the future Queen Wilhelmina of the Netherlands saw her dying father for the last time.

#OnThisDay in 1469 Margaret of Brittany died. She was born circa 1443 as the daughter of Francis I, Duke of Brittany and Isabella Stewart. In 1455, she married the future Francis II, Duke of Brittany and they had one short-lived son together.

#OnThisDay in 1860 Marie of Württemberg, Duchess of Saxe-Coburg and Gotha, died.

#OnThisDay in 1891 Princess Alexandra of Greece died. She was born in 1870 as the daughter of King George I of Greece and his wife, Grand Duchess Olga Constantinovna of Russia. In 1889, she married Grand Duke Paul Alexandrovich of Russia, and they had two children.

As we look ahead to the abdication and "Trounwiessel" in Luxembourg, read more about Adelheid Marie of Anhalt-Dessau, the first Grand Duchess consort of an independent Luxembourg.

#OnThisDay in 1143 Agnes of Waiblingen died. She was born circa 1072 as the daughter of the future Henry IV, Holy Roman Emperor, and Bertha of Savoy.

#OnThisDay in 1896 Archduchess Hedwig of Austria was born as the daughter of Archduke Franz Salvator of Austria and his wife, Marie Valerie of Austria. On 24 April 1918, she married Count Bernhard of Stolberg-Stolberg, and they had nine children. She died on 1 November 1970.

#OnThisDay in 1435 Isabeau of Bavaria, Queen of France, died.

#OnThisDay in 1418 Anne of Cyprus was born as the daughter of King Janus of Cyprus and Charlotte of Bourbon. On 12 February 1434, she married the future Louis, Duke of Savoy and they had 19 children, though not all lived to adulthood. She died on 11 November 1462.

#OnThisDay in 1513 Catherine of Saxe-Lauenburg was born as the daughter of Magnus I, Duke of Saxe-Lauenburg, and Catherine of Brunswick-Lüneburg. In 1531, she married King Gustav I of Sweden and they had one son. She died in 1535 shortly after a fall, while pregnant with her second child.

#OnThisDay in 1803 Grand Duchess Elena Pavlovna died. She was born in 1784 as the daughter of the future Tsar Paul I of Russia and his second wife Sophie Dorothea of Württemberg. On 23 October 1799, she married Frederick Louis, Hereditary Grand Duke of Mecklenburg-Schwerin and they had two children.

#OnThisDay in 1934 Princess Maria Pia of Savoy was born as the daughter of the future King Umberto II of Italy and Princess Marie José of Belgium.

NEW: Empress Yu Daolian was the empress consort of Emperor Fei of the Eastern Jin Dynasty. Emperor Fei would be known in history as the “Deposed Emperor.” When Emperor Fei was deposed, Yu Daolian’s empress title was removed.

#OnThisDay in 1434 Yolande of Valois was born as the daughter of King Charles VII of France and Marie of Anjou. She married Amadeus IX, the future Duke of Savoy in 1452 and they had ten children, though not all lived to adulthood. She died on 23 August 1478.

#OnThisDay in 1535 Catherine of Saxe-Lauenburg died. She was born in 1513 as the daughter of Magnus I, Duke of Saxe-Lauenburg, and Catherine of Brunswick-Lüneburg. In 1531, she married King Gustav I of Sweden and they had one son. She died shortly after a fall, while pregnant with her second child.

#OnThisDay in 1508 Beatrice of Naples died. She was born in 1457 as the daughter of the future Ferdinand I, King of Naples, and Isabella of Clermont. She was twice Queen of Hungary and of Bohemia, having married both Matthias Corvinus and Vladislaus II but had no children by either of her marriages.

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