January 4, 1825 (200): Death of King Ferdinand I of the Two Sicilies (1751-1825); accession of King Francis I (1777-1830)
January 14, 1850 (175): Birth of Grand Duke Alexei Alexandrovich of Russia (1850-1908)
January 19, 1925 (100): Death of Queen Maria Sophie of the Two Sicilies (1841-1925)
February 8, 1725 (300): Death of Emperor Peter I "the Great" of Russia (1672-1725); accession of Empress Catherine I (1684-1727)
March 27, 1625 (400): Death of King James I of England (VI of Scotland); accession of King Charles I (1600-1649)
May 1, 1850 (175): Birth of Prince Arthur, Duke of Connaught & Strathearn (1850-1942)
May 29, 1825 (200): Coronation of King Charles X of France (1757-1836)
June 25, 1900 (125): Birth of Prince Louis of Battenberg (1900-1979), later Earl Mountbatten of Burma
July 29, 1900 (125): Assassination of King Umberto I of Italy (1844-1900); accession of King Victor Emanuel III (1869-1947)
July 30, 1900 (125): Death of Prince Alfred, Duke of Edinburgh & Saxe-Coburg Gotha (1844-1900)
August 4, 1900 (125): Birth of Lady Elizabeth Bowes-Lyon (1900-2002), later Queen Elizabeth the Queen Mother
August 6, 1775 (250): Birth of Louis (XIX) Antoine, Duke of Angoulême (1775-1844), Dauphin of France (1824-30)
August 12, 2000 (25): Birth of Prince Achileas of Greece
August 15, 1950 (75): Birth of Princess Anne, Princess Royal
August 26, 1850 (175): Death of Louis Philippe (1773-1850), King of the French (1830-48)
September 29, 2000 (25): Creation of this website
October 7, 2000 (25): Abdication of Grand Duke Jean of Luxembourg (1921-2019); accession of Grand Duke Henri (1955- )
October 13, 1825 (200): Death of King Maximilian I of Bavaria (1756-1825); accession of King Ludwig I (1786-1868)
October 29, 1875 (150): Birth of Queen Marie of Romania (1875-1938)
October 29, 1950 (75): Death of King Gustaf V of Sweden (1858-1950); accession of King Gustaf VI Adolf (1882-1973)
November 7, 2000 (25): Death of Queen Ingrid of Denmark (1910-2000)
November 20, 1925 (100): Death of Queen Alexandra of the United Kingdom (1844-1925)
November 22, 1975 (50): Restoration of the Spanish Monarchy; accession of King Juan Carlos I (1938- )
December 1, 1825 (200): Death of Tsar Alexander I of Russia (1777-1825); accession of Tsar Nicholas I (1796-1855)
December 2, 1825 (200): Birth of Emperor Pedro II of Brazil (1825-1891)
(Rule for inclusion: Multiples of 25 up to 200; multiples of 50 up to 500; beyond that multiples of 100)
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