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Feudalism never really developed in Norway and Sweden, as it did in the rest of Europe. However, the administration of government took on a very conservative feudal character. The Hanseatic League forced the royalty to cede to them greater and greater concessions over foreign trade and the economy. The League had this hold over the royalty because of the loans the Hansa had made to the royalty and the large debt the kings were carrying. The League's monopolistic control over the economy of Norway put pressure on all classes, especially the peasantry, to the degree that no real burgher class existed in Norway.
Kalmar Union
Upon the death of Haakon V, King of Norway, in 1319, three year-old Magnus Erikson inherited the throne as King Magnus VII of Norway. At the same time a movement to make Magnus King of Sweden proved successful. (At this time both the kings of Sweden and of Denmark were elected to the throne by their respective nobles.) Thus, with his election to the throne of Sweden, both Sweden and Norway were united under King Magnus VII.
In 1349, the Black Death radically altered Norway, killing between 50% and 60% of its population and leaving it in a period of social and economic decline. The plague left Norway very poor. Although the death rate was comparable with the rest of Europe, economic recovery took much longer because of the small, scattered population. Before the plague, total population was only about 500,000 people. After the plague, many farms lay idle while the population slowly increased. The few surviving farms' tenants found their bargaining positions with their landlords greatly strengthened.
King Magnus VII ruled Norway until 1350, when his son, Haakon, was placed on the throne as Haakon VI. In 1363, Haakon VI married Margaret, the daughter of King Valdemar IV of Denmark. Upon the death of Haakon VI, in 1379, his son, Olaf IV, was only 10 years-old. Olaf had already been elected to the throne of
