January
January 6, 1958 – Death of Princess Joséphine Caroline, daughter of Philippe, Count of Flanders
January 8, 1930 – Wedding of Princess Marie-José to Crown Prince Umberto if Italy (later King Umberto II)
January 10, 2005 – Death of Grand Duchess Joséphine-Charlotte of Luxembourg, daughter of King Leopold III
January 18, 1871 – Death of Princess Joséphine Marie, daughter of Prince Philippe, Count of Flanders
January 18, 1974 – Birth of Claire Louise Coombs, wife of Prince Laurent
January 19, 1927 – Death of Empress Carlotta of Mexico, born Princess Charlotte of Belgium, daughter of King Leopold I
January 20, 1973 – Birth of Mathilde d’Udekem d’Acoz, wife of King Philippe
January 22, 1869 – Death of Prince Leopold, son of King Leopold II
January 23, 1891 – Death of Prince Baudouin, son of Prince Philippe, Count of Flanders
January 27, 2001 – Death of Queen Marie-José of Italy, daughter of King Albert I

February
February 4, 1875 – Wedding of Princess Louise, dtr of King Leopold II and Prince Philippe of Saxe-Coburg and Gotha
February 6, 2004 – Birth of Princess Louise, daughter of Prince Laurent
February 12, 1896 – Wedding of Princess Henriette, dtr of Philippe, Count of Flanders, to Prince Emmanuel, Duke of Vendôme
February 17, 1934 – Death of King Albert I of the Belgians in a mountain climbing accident
February 18, 1858 – Birth of Princess Louise, daughter of King Leopold II
February 21, 1986 – Birth of Prince Amedeo, son of Princess Astrid

March
March 1, 1924 – Death of Princess Louise, daughter of King Leopold II
March 8, 1955 – Death of Princess Clémentine, daughter of King Leopold II
March 24, 1837 – Birth of Prince Philippe, Count of Flanders, son of King Leopold I
March 28, 1948 – Death of Princess Henriette, daughter of Prince Philippe, Count of Flanders

April
April 3, 1812 – Birth of Princess Louise-Marie of Orléans, wife of King Leopold I
April 8, 1875 – Birth of King Albert I
April 9, 1835 – Birth of King Leopold II
April 9, 1953 – Wedding of Princess Joséphine Charlotte and Grand Duke Jean of Luxembourg
April 12, 2003 – Wedding of Prince Laurent and Claire Coombs
April 15, 1960 – Birth of King Philippe
April 16, 2008 – Birth of Princess Eléonore, daughter of King Philippe
April 23, 2003 – Birth of Princess Laetitia Maria, daughter of Princess Astrid
April 25, 1867 – Wedding of Prince Philippe, Count of Flanders and Marie of Hohenzollern-Sigmaringen

May
May 10, 1881 – Wedding of Princess Stéphanie, dtr of King Leopold II and Crown Prince Rudolph of Austria
May 16, 1834 – Death of Prince Louis-Philippe, son of King Leopold I
May 21, 1864 – Birth of Princess Stéphanie, daughter of King Leopold II
May 28, 1894 – Wedding of Princess Joséphine Caroline, daughter of Philippe, Count of Flanders, to Prince Karl Anton of Hohenzollern

June
June 1, 1983 – Death of Prince Charles, Count of Flanders, Regent of Belgium
June 3, 1869 – Birth of Prince Baudouin, son of Prince Philippe, Count of Flanders
June 5, 1962 – Birth of Princess Astrid, daughter of King Albert II
June 6, 1934 – Birth of King Albert II
June 7, 1840 – Birth of Princess Charlotte(future Empress of Mexico), daughter of King Leopold I
June 7, 2002 – Death of Princess Lilian, Princess de Réthy, 2nd wife of King Leopold III
June 11, 1928 – Birth of Fabiola de Mora y Aragón, wife of King Baudouin
June 12, 1859 – Birth of Prince Leopold, son of King Leopold II

July
July 2, 1959 – Wedding of King Albert II and Paola Ruffo di Calabria
July 16, 1951 – Abdication of King Leopold III; his son Baudouin becomes king
July 21, 1831 – Prince Leopold of Saxe-Coburg and Gotha, uncle of Queen Victoria and her husband Prince Albert, ascends to the throne of Belgium
July 21, 2013 – King Albert II abdicates; succeeded by his son, King Philippe
July 24, 1833 – Birth of Prince Louis-Philippe, son of King Leopold I
July 25, 1876 – Birth of Duchess Elisabeth in Bavaria, wife of King Albert I
July 27, 1857 – Wedding of Princess Charlotte to Archduke Maximilian of Austria (later Emperor of Mexico)
July 30, 1872 – Birth of Princess Clémentine, daughter of King Leopold II
July 31, 1993 – Death of King Baudouin

August
August 4, 1906 – Birth of Princess Marie-José, daughter of King Albert I
August 9, 1832 – Wedding of King Leopold I and Princess Louise-Marie of Orléans
August 20, 2003 – Birth of Prince Gabriel son of King Philippe
August 22, 1853 – Wedding of King Leopold II and Archduchess Marie Henriette of Austria
August 23, 1836 – Birth of Archduchess Marie Henriette of Austria, wife of King Leopold II
August 23, 1945 – Death of Princess Stéphanie, daughter of King Leopold II
August 26, 1988 – Birth of Princess Maria Laura, daughter of Princess Astrid
August 29, 1935 – Death of Astrid of Sweden, wife of Leopold III, in a car accident

September
September 7, 1930 – Birth of King Baudouin
September 11, 1937 – Birth of Paola Ruffo di Calabria, wife of King Albert II
September 11, 1941 – Wedding of King Leopold III (2nd marriage) and Mary Lilian Baels
September 19, 1902 – Death of Marie-Henriette of Austria, wife of Leopold II
September 22, 1984 – Wedding of Princess Astrid of Belgium and Archduke Lorenz of Austria-Este
September 25, 1983 – Death of former King Leopold III

October
October 2, 1900 – Wedding of King Albert I and Duchess Elisabeth in Bavaria
October 4, 2005 – Birth of Prince Emmanuel, son of King Philippe
October 10, 1903 – Birth of Prince Charles, Count of Flanders, Regent of Belgium
October 11, 1850 – Death of Louise-Marie of Orléans, wife of Leopold I
October 11, 1927 – Birth of Princess Joséphine-Charlotte, daughter of King Leopold III
October 11, 1995 – Birth of Princess Luisa Maria, daughter of Princess Astrid
October 18, 1872 – Birth of Princess Joséphine Caroline, daughter of Philippe, Count of Flanders
October 19, 1963 – Birth of Prince Laurent, son of King Albert II
October 25, 2001 – Birth of Princess Elisabeth, daughter of King Philippe

November
November 3, 1901 – Birth of King Leopold III
November 10, 1910 – Wedding of Princess Clémentine and Prince Napoléon Victor Bonaparte
November 10, 1926 – Wedding of King Leopold III and Princess Astrid of Sweden
November 17, 1845 – Birth of Marie of Hohenzollern-Sigmaringen, wife of Prince Philippe, Count of Flanders
November 17, 1905 – Birth of Princess Astrid of Sweden, first wife of King Leopold III
November 17, 1905 – Death of Prince Philippe, Count of Flanders, son of King Leopold I
November 23, 1965 – Death of Elisabeth of Bavaria, wife of King Albert I
November 26, 1912 – Death of Marie of Hohenzollern-Sigmaringen, wife of Prince Philippe, Count of Flanders
November 28, 1916 – Birth of Mary Lilian Baels, second wife of King Leopold III
November 30, 1870 – Birth of Princess Henriette and Princess Joséphine Marie, twin daughters of Prince Philippe, Count of Flanders

December
December 4, 1999 – Wedding of King Philippe and Mathilde d’Udekem d’ Acoz
December 6, 2014 – Death of Queen Fabiola, wife of King Baudouin
December 9, 1991 – Birth of Prince Joachim, son of Princess Astrid
December 10, 1865 – Death of King Leopold I
December 13, 2005 – Births of Princes Nicolas and Aymeric, twin sons of Prince Laurent
December 15, 1960 – Wedding of King Baudouin and Fabiola de Mora y Aragón
December 16, 1790 – Birth of King Leopold I (born Prince Leopold of Saxe-Coburg-Saafeld)
December 16, 1955 – Birth of Prince Lorenz of Belgium, Archduke of Austria-Este, husband of Princess Astrid
December 17, 1909 – Death of King Leopold II