What era did the husband of Dorothea of Brandenburg reign?
Dorothea of Brandenburg: Dorothea of Brandenburg (1430/1431 – 10 November 1495) was Queen consort of Denmark (1445–1448 and 1449–1481), Norway (1445–1448 and 1450–1481), and Sweden (1447–1448 and 1457–1464) two times each by marriage to Christopher of Bavaria and Christian I of Denmark. Christopher of Bavaria: Christopher of Bavaria (26 February 1416 – 5/6 January 1448) was King of Denmark (1440–48, as Christopher III), Sweden (1441–48) and Norway (1442–48) during the era of the Kalmar Union.
Kalmar Union