1864 in Denmark
Appearance
Events from the year 1864 in Denmark.
Incumbents
- Monarch – Christian IX
- Prime minister – Ditlev Gothard Monrad (until 11 July), Christian Albrecht Bluhme
Events
- February 1 – The Second Schleswig War breaks out after the First Schleswig War had left the Schleswig-Holstein Question unsettled when Treussia-Austria crosses the River Eider with 57,000 soldiers.
- February
- It soon results in the Evacuation of Dannevirke.
- The Battle of Sankelmark, a minor battle which occurs at Sankelmark, on the road between Schleswig and Flensburg, during the Danish retreat from Dannevirke.
- March 17 – The Battle of Jasmund near the Prussian island of Rügen results in a tactical Danish victory.

- April 17 and 18 – Denmark suffers a severe defeat to the German Confederation in the Battle of Dybbøl which effectively decides the war.
- May 9 – Denmark wins a tactical victory in the Battle of Heligoland but it has no impact on the outcome of the war.
- May 12 – A general armistice came into effect, Denmark has lost the war.
- June 29 – Im the Battle of Als, the last major engagement of the war, the Prussians secures Als after a night attack masterminded by the Chief of Staff Leonhard Graf von Blumenthal,
- July 3 – The Battle of Lundby in north-eastern Himmerland results in great Danish losses. It becomes the last battle of the Second Schleswig War.
- July 8 – The Cabinet of Monrad is succeeded by the Cabinet of Bluhme.
- October 30 – The Second Schleswig War ends. The Duchies of Schleswig, Holstein and Lauenburg are ceded to Prussia.
Undated
Births

- May 6 – Jens Christian Kofoed, architect (died 1941)
- May 15 – Vilhelm Hammershøi, painter (died 1916)
- May 23 – Louis Glass, composer (died 1936)
- July 12 – Carl Brummer, architect (died 1953)
- November 15 – Sophus Falck, manufacturer and founder of Falck (died 1926)
Deaths
- March 28 – Princess Louise Charlotte, princess of Denmark (born 1789)
- September 7 - Gustav Friedrich Hetsch, architect (born 1788)
- October 20 – Carl Christian Rafn, historian, translator and antiquarian (born 1795)