The Swedish Empire, referred to in Sweden as the Great Power Era (Swedish: stormaktstiden), was the period in Swedish history spanning much of the 17th and early 18th centuries during which Sweden was a European great power that exercised territorial control over much of the Baltic region. During this period, it also held territories on the North Sea including overseas colonies, such as New Sweden. The beginning of the period is usually taken as the reign of Gustavus Adolphus, who ascended the throne in 1611, and its end as the loss of territories in 1721 following the Great Northern War.
After the death of Gustavus Adolphus in 1632, the empire was controlled for lengthy periods by part of the high nobility, such as the Oxenstierna family, acting as regents for under-aged monarchs.
After its victories in the Thirty Years' War and the subsequent Peace of Westphalia Sweden was granted territories in northern Germany. Sweden reached the height of its power during the Northern War of 1655–1660, when its primary adversary, Denmark–Norway, was neutralized by the Treaty of Roskilde in 1658. Denmark–Norway was forced to give up a third of its territory to save the rest. Although the reign of Charles XII would see initial Swedish victories in the Peace of Travendal (1700) and the Treaty of Altranstädt (1706), he would go on to lead a campaign in Russia that would end in a decisive defeat at the Battle of Poltava. The Russian victory put an end to Sweden's territorial expansion, and by the time of Charles XII's death in 1718 the Empire had been severely diminished both territorially and militarily. Finland was ceded to Russia in 1809, and Sweden's last remaining continental territory (Swedish Pomerania) was ceded to Denmark in exchange for Norway following the Napoleonic Wars.
History
Emergence as a great power
Sweden emerged as a great European power under Axel Oxenstierna and King Gustavus Adolphus. As a result of acquiring territories seized from Russia and the Polish–Lithuanian Commonwealth, as well as its involvement in the Thirty Years' War, Sweden found itself transformed into the leader of Protestantism.
Sweden's rise was supported by a rapidly expanding metals economy. By the early seventeenth century, Sweden had become northern Europe's leading exporter of iron and copper; together the two metals accounted for nearly 63% of national exports in 1637 and more than 80% in 1685. Under Gustavus Adolphus, the Crown also exploited the Stora Kopparberg copper mine at Falun, then the largest copper mine in Europe, using its revenues to help finance the king's political and military ambitions.
During the Thirty Years' War, Sweden managed to conquer approximately half of the member states of the Holy Roman Empire. The fortunes of war would shift back and forth several times. After its defeat in the Battle of Nördlingen (1634), confidence in Sweden among the Swedish-controlled German states was damaged, and several of the provinces refused further Swedish military support, leaving Sweden with only a couple of northern German provinces. After France intervened on the same side as Sweden, fortunes shifted again. As the war continued, the civilian and military death toll grew, and when it was over, it had led to severe depopulation in the German states. Although exact population estimates do not exist, historians estimate that the population of the Holy Roman Empire fell by one-third as a result of the war.
Sweden founded overseas colonies, principally in the New World. New Sweden was founded in the valley of the Delaware River in 1638, and Sweden later laid claim to a number of Caribbean islands. A string of Swedish forts and trading posts was constructed along the coast of West Africa as well, but these were not designed for Swedish settlers.
Peace of Westphalia
At the conclusion of the Thirty Years' War, the Peace of Westphalia (1648) granted Sweden territories as war reparations. Sweden demanded Silesia, Pomerania (which had been in its possession since the Treaty of Stettin (1630)), and a war indemnity of 20,000,000 Riksdaler.
Through the efforts of Johan Oxenstierna and Johan Adler Salvius it obtained:
These German possessions were to be held as fiefs of the Holy Roman Empire. This allowed Sweden a vote in the Imperial Diet and enabled it to "direct" the Lower Saxon Circle alternately with Brandenburg. France and Sweden, moreover, became joint guarantors of the treaty with the Holy Roman Emperor and were entrusted with carrying out its provisions, as enacted by the executive congress of Nuremberg in 1650.
After the peaces of Brömsebro and Westphalia, Sweden was the third-largest area of control in Europe by land area, only surpassed by Russia and Spain. Sweden reached its largest territorial extent during this time under the rule of Charles X Gustav (1654–1660) after the Treaty of Roskilde in 1658.
Domestic consolidation
For the moment, Sweden held a tenuous position of leadership. Careful statesmanship might mean permanent dominion on the Baltic shore, but left little room for mistakes. The extravagance of Gustavus Adolphus's two immediate successors, Christina and Charles X Gustav, caused great difficulties for the new empire.
Christina's financial extravagance brought the state to the verge of bankruptcy, and the financial difficulties caused public unrest before her abdication. The Swedish people feared that the external, artificial greatness of their country might be purchased with the loss of their civil and political liberties. The Swedish people looked to a new king to address the problem of too much power vested in the nobility.
Charles X Gustav was a strong arbiter between the people and the nobility. Primarily a soldier, he directed his ambition towards military glory; but he was also an unusually sharp-sighted politician. While placing great emphasis on military strength, he also understood that domestic unity was necessary for a powerful foreign policy.
The most pressing domestic question was the reduction, or restitution of alienated crown lands. At the Riksdag of the Estates of 1655, the king proposed that noble holders of crown property should either: 1) pay an annual sum of 200,000 Riksdaler out of the lands they would receive, or 2) surrender a fourth of the property itself, worth approximately 800,000 Riksdaler. The nobility wished to avoid taxation and stipulated that 6 November 1632, the day of Gustavus Adolphus' death, should be the limit to which retrospective taxes could be collected, and that there should be no further restitution of alienated crown property. Against this, the over-taxed lower estates protested, and the Diet had to be suspended. The king intervened, not to quell the commons, as the senate insisted, but to compel the nobility to give way. He proposed a special committee to investigate the matter before the meeting of the next Riksdag and that a proportional contribution should be levied on all classes in the meantime. Both groups accepted this arrangement.
The interests of the high nobility contrasted with the uniformity policy (i.e., upholding the traditional equality in status of the Swedish estates favoured by the kings and peasantry). In territories acquired during the periods of de facto noble rule, serfdom was not abolished, and there was also a trend to set up respective estates in Sweden proper. The Great Reduction of 1680 put an end to these efforts of the nobility and required them to return estates once gained from the crown to the king. Serfdom, however, remained in force in the dominions acquired in the Holy Roman Empire and in Swedish Estonia, where a consequent application of the uniformity policy was hindered by the treaties by which they were gained.
Charles X Gustav had done his best to recover from the financial extravagance of Christina. However, his own desire for military glory may have caused problems for his country. In three days, he persuaded the Swedish estates of the potential of his attack on the Polish–Lithuanian Commonwealth. However, when he left Stockholm for Warsaw on 10 July 1654, he gained more personal glory than advantage for his country. The Polish-Swedish War expanded into a general European war. He achieved passage over the Belts and emerged triumphant, only to die of sheer exhaustion. Immediately after his death, a regency was appointed to govern Sweden during the minority of his only son and successor, Charles XI of Sweden, who was four years old. The regency council moved quickly to end the war with Sweden's numerous enemies, which now included the Tsardom of Russia, the Polish–Lithuanian Commonwealth, the Electorate of Brandenburg and Denmark-Norway.
Treaty of Roskilde and Peace of Oliva
After a Swedish war against Denmark–Norway, the Treaty of Roskilde in 1658 forced Denmark–Norway to cede Blekinge, Bornholm, Bohuslän, Scania and Trøndelag, as well as Halland to Sweden.
The Peace of Oliva on 3 May 1660, put an end to the long feud with Poland.
French mediation of this treaty also ended the quarrel between Sweden, the Holy Roman emperor and the elector of Brandenburg. This treaty confirmed both Sweden's possession of Livonia and the elector of Brandenburg's sovereignty over Prussia; and the king of Polish–Lithuanian Commonwealth renounced to all claims to the Swedish crown. The treaty compelled Denmark–Norway to reopen direct negotiations with Sweden. Eventually, under the Treaty of Copenhagen on 27 May 1660, Sweden kept the three formerly Danish Scanian provinces and the formerly Norwegian Bohuslän province, which Denmark-Norway had surrendered by the Treaty of Roskilde two years previously; but Sweden had to relinquish the Norwegian province of Trøndelag and the Danish island of Bornholm, which had been surrendered at Roskilde. Denmark–Norway was also compelled to recognize the independence of the dukes of Holstein-Gottorp. The Russo-Swedish War (1656–1658) was terminated by the Treaty of Cardis on 2 July 1661, through which the Tsar surrendered the Baltic provinces to Sweden — Ingria, Estonia and Kexholm.
Thus, Sweden emerged from the war not only a military power, but also one of the largest states of Europe, possessing more than twice as much territory as modern Sweden. The land area of Sweden was 1,100,000 km2. While modern Sweden is bounded by the Baltic, during the 17th century the Baltic formed a bond between various widely dispersed dominions. All the islands in the Baltic, except the Danish group, belonged to Sweden. The estuaries of all the great German rivers lay within Swedish territory, which also included two-thirds of Lake Ladoga and one-half of Lake Peipus. Stockholm, the capital, lay in the very centre of the empire, whose second greatest city was Riga, on the other side of the sea. This empire contained about a quarter of the population of modern Sweden, at only 2,500,000 people, or about 2.3 people per square kilometer. However, Sweden's expansion had been possible partly due to turmoil and weakness in countries in its vicinity, and when they became more stable, they began to look for chances to regain what was lost.
Sweden had now won considerable political influence, which was lessened by the loss of moral prestige. On Charles X Gustav's accession in 1655, Sweden's neighbours may have become allies; however, territorial loss combined with the loss of religious liberty lessened their ties to Sweden. At Charles X Gustav's death, five years later, Sweden had not only damaged its newly claimed territories but also had become hated by the surrounding states for its lack of defence of Protestantism. Charles X Gustav's attempt to gain the favour of Brandenburg by dividing Poland not only reversed his original policy, but also created a new southern rival almost as dangerous as Denmark–Norway in the west.