28 February – A decree made it explicitly illegal for Jesuits and monks to appear in the country, with death penalty as a consequence for offenders.[2]
25 October – Det Norske Jernkompani is granted a royal privilege, granting the company almost a monopoly on iron production on an industrial scale within Norway.[3]
^Rian, Øystein; Mardal, Magnus A.; Weidling, Tor Ragnar. "Christian 4.". In Bolstad, Erik (ed.). Store norske leksikon (in Norwegian). Oslo: Norsk nettleksikon. Retrieved 21 December 2023.
^Bang, A. Chr. (1912). Den norske kirkes historie (in Norwegian). Kristiania and Copenhagen: Gyldendal. p. 361.
^Ingolf Jarle Rui. "Jernkompaniet". Store norske leksikon. Retrieved 1 February 2016.