^Rian, Øystein; Mardal, Magnus A. "Frederik 3.". In Bolstad, Erik (ed.). Store norske leksikon (in Norwegian). Oslo: Norsk nettleksikon. Retrieved 17 December 2023.
^Rian, Øystein. "Christian 5.". In Bolstad, Erik (ed.). Store norske leksikon (in Norwegian). Oslo: Norsk nettleksikon. Retrieved 14 December 2023.