October 4 – The Dannebroge explodes and sinks at the Battle of Køge Bay in Denmark, almost all of its crew of 600 were killed, one thirds of the victims were Norwegians.
^Johannessen, Finn Erhard; Mardal, Magnus A. "Frederik 4.". In Bolstad, Erik (ed.). Store norske leksikon (in Norwegian). Oslo: Norsk nettleksikon. Retrieved 14 December 2023.