as ▁poss essions , ▁a ▁Sam i ▁minor ity ▁in ▁northern ▁Norway , ▁as ▁well ▁as ▁ind igen ous ▁pe op les ▁and ▁ens la ved ▁Afr icans ▁in ▁the ▁colon ies . ▁The ▁main ▁cities ▁of ▁Den mark – N or way ▁were ▁C open hagen , ▁Christian ia ▁( Os lo ), ▁Al ton a , ▁Ber gen ▁and ▁Tr ond heim , ▁and ▁the ▁primary ▁official ▁languages ▁were ▁Dan ish ▁and ▁German , ▁but ▁Norwegian , ▁I cel and ic , ▁Far o ese , ▁Sam i ▁and ▁Green land ic ▁were ▁also ▁spoken ▁locally .. Sc and in av ian ▁Language . ▁Retrieved ▁ 3 0 ▁April ▁ 2 0 1 8 . ▁ ▁In ▁ 1 3 8 0 , ▁O la f ▁II ▁of ▁Den mark ▁inherited ▁the ▁Kingdom ▁of ▁Norway , ▁titled ▁as ▁O la f ▁IV , ▁after ▁the ▁death ▁of ▁his ▁father ▁Ha ak on ▁VI ▁of ▁Norway , ▁who ▁was ▁married ▁to ▁O la f ' s ▁mother ▁Mar gre te ▁I . ▁Mar gre te ▁I ▁was ▁r uler ▁of ▁Norway ▁from ▁her ▁son ' s ▁death ▁in ▁ 1 3 8 7 ▁until ▁her ▁own ▁death ▁in ▁ 1 4 1 2 . ▁Den mark , ▁Norway , ▁and ▁Sweden ▁established ▁and ▁formed ▁the ▁Kal mar ▁Union ▁in ▁ 1 3 9 7 . ▁Following ▁Sweden ' s ▁departure ▁in ▁ 1 5 2 3 , ▁the ▁union ▁was ▁effectively ▁dissol ved . ▁From ▁ 1 5 3 6 / 1