January
January 09 1907 Death of Queen Marie, wife of King George V
January 23 1957 Birth of Princess Caroline of Monaco, second wife of Ernst August (V)
January 23 1999 Marriage of Ernst August (V) to Princess Caroline of Monaco
January 29 1820 Death of King George III
January 29 1820 Accession of King George IV
January 30 1953 Death of Ernst August III, Duke of Brunswick

February
February 06 1980 Death of Princess Ortrud, first wife of Ernst August (IV)
February 18 1843 Marriage of King George V to Marie of Saxe-Altenburg
February 26 1933 Death of Crown Princess Thyra, wife of Crown Prince Ernst August (II)
February 26 1954 Birth of Ernst August (V), Prince of Hanover – current head of the House of Hanover

March
March 03 1778 Birth of Frederica of Mecklenburg-Strelitz, wife of King Ernst August I
March 18 1914 Birth of Ernst August (IV), Prince of Hanover

April
April 08 1795 Marriage of King George IV to Caroline of Brunswick-Wolfenbüttel
April 14 1818 Birth of Marie of Saxe-Altenburg, wife of King George V

May
May 17 1768 Birth of Caroline of Brunswick-Wolfenbüttel, wife of King George IV
May 19 1744 Birth of Charlotte of Mecklenburg-Strelitz, wife of King George III
May 24 1913 Marriage of Ernst August III to Princess Viktoria Luise of Prussia, dtr of Kaiser Wilhelm II
May 27 1819 Birth of King George V
May 29 1815 Marriage of King Ernst August I to Frederica of Mecklenburg-Strelitz

June
June 01 1985 Birth of Christian of Hanover, son of Ernst August (V) and Chantal Hochuli
June 02 1955 Birth of Chantal Hochuli, first wife of Ernst August (V)
June 04 1738 Birth of King George III of the UK, first King of Hanover
June 05 1771 Birth of King Ernst August I
June 12 1878 Death of King George V, the last King of Hanover
June 20 1837 Death of King William IV
June 20 1837 Accession of King Ernst August I, ending the personal union between Hanover and the UK
June 26 1830 Death of King George IV
June 26 1830 Accession of King William IV
June 29 1841 Death of Queen Frederica, wife of King Ernst August I

 July
July 08 2017 Marriage of Ernst August of Hanover to Ekaterina Malysheva
July 11 1818 Marriage of King William IV to Adelaide of Saxe-Meiningen
July 16 1981 Marriage of Ernst August (IV) to Monika of Solms-Laubach
July 19 1983 Birth of Ernst August of Hanover, son of Ernst August (V) and Chantal Hochuli
July 20 1999 Birth of Alexanra of Hanover, daughter of Ernst August (V) and Caroline of Monaco

August
August 07 1821 Death of Queen Caroline, wife of King George IV
August 08 1929 Birth of Monika of Solms-Laubach, second wife of Ernst August (IV)
August 12 1762 Birth of King George IV
August 13 1792 Birth of Adelaide of Saxe-Meiningen, wife of King William IV
August 21 1765 Bith of King William IV
August 28 1981 Marriage of Ernst August (V) to Chantal Hochuli

September
September 05 1951 Marriage of Ernst August (IV) to Ortrud of Schleswig-Holstein-Sonderburg-Glücksburg
September 08 1761 Marriage of King George III to Charlotte of Mecklenburg-Strelitz
September 13 1892 Birth of Viktoria Luise of Prussia, wife of Ernst August III, Duke of Brunswick
September 20 1866 Kingdom of Hanover formally annexed by the Kingdom of Prussia
September 21 1845 Birth of Crown Prince Ernst August, son of Ernst August I and Marie of Saxe-Altenburg
September 29 1853 Birth of Princess Thyra of Denmark, wife of Crown Prince Ernst August (II)

October
October 12 1814 Electorate of Brunswick-Lüneberg elevated to Kingdom of Hanover by the Congress of Vienna
October 12 1814 King George III of the UK, prince-elector of Brunswick-Lüneberg becomes first King of Hanover
October 23 1997 Divorce of Ernst August (V) and Chantal. Princess of Hanover (neé Chantal Hochuli)

November
November 14 1923 Death of Crown Prince Ernst August (II)
November 17 1818 Death of Queen Charlotte, wife of King George III
November 17 1887 Birth of Ernst August (III), Duke of Brunswick, son of Ernst August (II) and Thyra of Denmark
November 18 1851 Death of King Ernst August I
November 18 1851 Accession of King George V

December
December 02 1849 Death of Queen Adelaide, wife of King William IV
December 09 1987 Death of Ernst August (IV), Prince of Hanover
December 11 1980 Death of Viktoria Luise, Duchess of Brunswick, wife of Ernst August III, Duke of Brunswick
December 19 1925 Birth of Ortrud of Schleswig-Holstein-Sonderburg-Glücksburg, first wife of Ernst August (IV)
December 21 1878 Marriage of Crown Prince Ernst August (II) to Princess Thyra of Denmark