And what about the flag? I would propose the swedish flag; besides being the most beautiful, it would balance the fact of København (a danish city) being the capital and the language being west-scandinavian, derivated from norwegian and coming from norwegian territory. The swedes sure would be pleased with this.
I dont even think the Swedish flag exsisted yet:
The exact age of the Swedish Flag is not known, but the oldest recorded pictures of a blue cloth with a yellow cross date from the 16th century. As decreed in a royal warrant of 1569, the yellow cross was always to be borne on Swedish battle standards and banners, as the Swedish Coat of Arms was blue divided quarterly by a cross of gold. The design of the Swedish flag is probably taken from the Danish flag, and its blue and yellow colours possibly come from the Coat of Arms. Not until the 1620s, i.e., during the reign of Gustav II Adolf. do we find any reliable evidence of the blue flag with a yellow cross being carried by Swedish vessels. According to our oldest existing flag warrant, from 1663, a triple-tailed flag was to be used except by merchant ships, whose flag was square-cut
Wasn't there a Kalmar Union flag?
Yes, but IMHO it was butt ugly. Horendous use of colours