1840s|Monarch – Frederick VI
Prime minister – Otto Joachim
1 January – Johan Ludvig Heiberg (poet) publishes the literary journal Kjøbenhavns flyvende Post for the first time.
May – Siboni opens the first music conservatory in Copenhagen.
12 June – The line dancer Christian Rost is killed during a show at Rosenborg drill grounds when his rope breaks.
The crown acquires the Holstein Mansion in Copenhagen as a permanent home for the Natural History Museum.
8 February – Hans Schjellerup, astronomer (died 1887)
1 March – Eiler Rasmussen Eilersen, painter (died 1912)
16 March – Ferdinand Meldahl, architect (died 1908)
20 March – Johannes Forchhammer, philologist (died 1909)
12 May – Israel B. Melchior, photographer (died 1893)
7 October – Christian Frederik Lütken, zoologist ad naturalist (died 1901)
22 December – Anders Petersen (historian), historian (died 1914)
- Natalie Zahle, reform pedagogue and pioneer on women's education (died 1913)
September 19 – Morten Thrane Brünnich, zoologist and mineralogist (born 1737)
October 11 – Christian Ditlev Frederik Reventlow, statesman and reformer (born 1748)
Marie Barch, first native Danish ballerina (born 1744)
1827 in Denmark Wikipedia
Events from the year 1827 in Denmark.