Realm
Personal union in Scandinavia
The Kalmar Union was a personal union in Scandinavia, agreed upon at Kalmar in Sweden as designed by Queen Margaret I of Denmark. From 1397 to 1523, it joined under a single monarch the three kingdoms of Denmark, Sweden, and Norway, together with Norway's maritime colonies.
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Text from the Wikipedia article “Kalmar Union”, available under CC BY-SA 4.0.
The Kalmar Union was a personal union in Scandinavia, agreed upon at Kalmar in Sweden as designed by Queen Margaret I of Denmark. From 1397 to 1523, it joined under a single monarch the three kingdoms of Denmark, Sweden (then including much of present-day Finland), and Norway, together with Norway's maritime colonies (then including Iceland, Greenland, the Faroe Islands, and the Northern Isles of Orkney and Shetland).
The union was not continuous. The countries retained separate legal and administrative systems, and in particular in Sweden, the union was from the middle of the fifteenth century often nominal, with actual power instead in the hands of the nobility. Gustav Vasa's election as King of Sweden on 6 June 1523, and his triumphant entry into Stockholm 11 days later, marked Sweden's final secession from the Kalmar Union. Frederick I formally renounced his claim to Sweden in 1524 at the Treaty of Malmö.
The union was the work of Scandinavian aristocracy who sought to counter the influence of the Hanseatic League, a northern German trade league centered around the Baltic and North Seas. Denmark in particular was in a power struggle with the League and had recently suffered a humiliating defeat in the Danish-Hanseatic War (1361-1370) that allowed the League to become even more powerful. On the personal level, the union was achieved by Queen Margaret I of Denmark (1353–1412). She was a daughter of King Valdemar IV of Denmark and had married King Haakon VI of Norway and Sweden, who was the son of King Magnus IV of Sweden, Norway and Scania. Margaret succeeded in having her and Haakon's son Olaf recognized as heir to the throne of Denmark. In 1376, Olaf inherited the crown of Denmark from his maternal grandfather as King Olaf II, with his mother as guardian; when Haakon VI died in 1380, Olaf also inherited the crown of Norway.
Margaret became regent of Denmark and Norway when Olaf died in 1387, leaving her without an heir. She adopted her great-nephew Eric of Pomerania the same year. In 1388, Swedish nobles called upon her help against King Albert. After Margaret defeated Albert in 1389, her heir Eric was proclaimed King of Norway. Eric was subsequently elected King of Denmark and Sweden in 1396 under the banner of the House of Griffin. His coronation was held in Kalmar on 17 June 1397.
One main impetus for the union's formation was to block German expansion northward into the Baltic region. The main reason for its failure to survive was the perpetual struggle between the monarch, who wanted a strong unified state, and the Swedish and Danish nobility, which did not.
The Union lost territory when Orkney and Shetland were pledged by Christian I, in his capacity as King of Norway, as security against the payment of the dowry of his daughter Margaret, betrothed to James III of Scotland in 1468. The money was never paid, so in 1472 the Kingdom of Scotland annexed the islands.
Diverging interests (especially the Swedish nobility's dissatisfaction with the dominant role played by Denmark and Holstein) gave rise to a conflict that hampered the union in several intervals starting in the 1430s. The Engelbrekt rebellion, which started in 1434, led to the overthrow of King Erik (in Denmark and Sweden in 1439, as well as Norway in 1442). The aristocracy sided with the rebels.
King Erik's foreign policy, in particular his conflict with the Hanseatic League, necessitated greater taxation and complicated exports of iron, which in turn may have precipitated the rebellion. Discontent with the nature of Erik's regime has also been cited as a motivating factor for the rebellion. Erik also lacked a standing army and had limited tax revenues.
The death of Christopher of Bavaria (who had no heirs) in 1448 ended a period in which the three Scandinavian kingdoms were uninterruptedly united for a lengthy period. Karl Knutsson Bonde ruled as king of Sweden (1448–1457, 1464–1465, and 1467–1470) and Norway (1449-1450). Christian of Oldenburg was king of Denmark (1448–1481), Norway (1450–1481) and Sweden (1457–1464). Karl and Christian fought over control of Sweden, Norway, and Denmark, leading Christian to seize Sweden from him from 1457 to 1464 before a rebellion led Karl to become king of Sweden again. When Karl died in 1470, Christian tried to become king of Sweden again, but was defeated by Sten Sture the Elder in the 1471 battle of Brunkeberg outside Stockholm.
After Karl's death, Sweden was mostly ruled by a series of "protectors of the realm" (riksföreståndare), with the Danish kings attempting to assert control. First of these protectors was Sten Sture, who kept Sweden under his control until 1497, when the Swedish nobility deposed him. A peasant rebellion led Sture to become regent of Sweden again in 1501. After his death, Sweden was ruled by Svante Nilsson (1504–1512) and then Svante's son Sten Sture the Younger (1512–1520). Sten Sture the Younger was killed in the 1520 Battle of Bogesund when the Danish king Christian II invaded Sweden with a large army. Subsequently, Christian II was crowned King of Sweden, and supporters of Sten Sture were executed en masse in the Stockholm Bloodbath.
After the Stockholm Bloodbath, Gustav Vasa (whose father, Erik Johansson, was executed) travelled to Dalarna, where he organized a rebellion against Christian II. Vasa made an alliance with Lübeck and successfully conquered most of Sweden. He was elected King of Sweden in 1523, effectively ending the Kalmar Union. After the Northern Seven Years' War, the Treaty of Stettin (1570) saw Frederick II renounce all claims to Sweden.
One of the union's last structures remained until 1536/1537, when the Danish Privy Council, in the aftermath of the Count's Feud, declared Norway a Danish province. In practice, Norway kept its status as a separate kingdom and its own laws, but its council and other central institutions were dissolved, and it became politically subordinate to Denmark. This Denmark–Norway union lasted nearly three centuries, until Norway was ceded to Sweden in 1814. The later Swedish–Norwegian union lasted until 1905, when Prince Carl of Denmark was elected king of independent Norway.
According to historian Sverre Bagge, the Kalmar Union was unstable for several reasons:
Text from the Wikipedia article “Kalmar Union”, available under CC BY-SA 4.0.