• Monarch – Christian V^[1]
• Grand Chancellor – Frederik Ahlefeldt

• 11 March – Peder Griffenfeld is arrested at Copenhagen Castle and brought to Kastellet where he is imprisoned.^[2]
• 8 May – Dutchman Cornelis Tromp becomes Admiral-General in the Royal Danish Navy and knight in the Order of the Elephant.
• May 25–26 – The Battle of Bornholm results in a minor strategic victory to a Danish-Dutch fleet led by Niels Juel against a Swedish fleet.
• 26 May – The show trial against Griffenfeld ends with his conviction of all charges against him for simony, bribery, oath-breaking, malversation and lèse-majestéand and treason. He is sentenced to loss of honour, life and estate.^[2]
• 1 June – The naval Battle of Öland results in a decisive Danish-Dutch victory against a Swedish fleet and Danish naval supremacy that was upheld throughout the war.
• 6 June – Griffenfeld is pardoned on the scaffold, at the very moment when the axe was about to descend, and his sentence is commuted to lifelong imprisonment.
• 23 June – The County of Schackenborg is established by Otto Didrik Schack, 1st Count of Schackenborg from the manors of Schackenborg, Sødamgård, Solvig and Store Tønde.
• 29 June – A Danish fleet transports 14,500 soldiers across the Sound, landing them just south of Helsingborg, and Scania becomes the main battle ground for the remainder of the war.

Undated edit

• Rømer's determination of the speed of light: Danish physicist Ole Rømer makes the first ever quantitative measurements of the speed of light in Paris.
• Dutch Golden Age painter Jacob Koninck moves to Denmark.

• 4 March – Hans Schack, 2nd Count of Schackenborg (died 1719)

Full date unknown edit

• Christian Thomsen Carl, naval officer (died 1713)

• 1 January – Abel Cathrine, courtier and favorite of the queen of Denmark (born c. 1626)
• 27 February – Hans Schack, noble and commander-in-chief of the Danish army (born 1608)
• 5 March – Abel Schrøder, woodcarver (born c. 1602)