April 16 – Joachim Gersdorff dies suddenly, giving rise to rumours that he has been poisoned. His wife Øllegaard Huitfeld and a maidservant are convicted of murder.
April 24 – Auctions are first authorized in Copenhagen and an auction master is engaged.[2]
May 7 – A tax on marriage is introduced (the so-called kopulationspenge)[2]
June 24 – The Coat of arms of Copenhagen is granted to the city by the king in appraisal of its citizens' efforts in repelling the Swedish siege and attack on the city the previous year. An accompanying royal letter of privilege also introduced various privileges which, however remained of relatively minor importance. The city is also granted the fief Roskilde (Bidstrup estate).* September – Corfitz Ulfeldt and Leonora Christina are released from their imprisonment at Hammershus on the island of Bornholm.[2]
Undated
Market towns are given a monopoly on trade and crafts.