Gustav I, portrayed here in 1542 by Jakob Binck, legally created the hereditary monarchy and organized the Swedish unitary state
Catholic bishops had supported the King of Denmark, Christian II, but he was overthrown in a rebellion led by nobleman Gustav Vasa, whose father had been executed at the Stockholm bloodbath. Gustav Vasa (hereinafter referred to as Gustav I) was elected King of Sweden by the Estates of the Realm, assembled in Strangnas on 6 June 1523.Inspired by the teachings of Martin Luther, Gustav I used the Protestant Reformation to curb the power of the Roman Catholic Church. In 1527 he persuaded the Estates of the Realm, assembled in the city of Vasteras, to confiscate church lands, which comprised 21% of the country's farmland. At the same time, he broke with the papacy and established a reformed state church: the Church of Sweden. Throughout his reign, Gustav I suppressed both aristocratic and peasant opposition to his ecclesiastical policies and efforts at centralisation, which to some extent laid the foundation for the modern Swedish unitary state. Legally Sweden has only been a hereditary monarchy since 1544 when the Riksdag of the Estates, through Vasteras arvforening, designated the sons of King Gustav I as the heirs to the Throne.
The Lion of the North: King Gustavus Adolphus depicted at the turning point of the Battle of Breitenfeld (1631) against the forces of Johann Tserclaes, Count of Tilly
Gustavus Adolphus inherited three wars from his father when he ascended to the throne. From 1612, when Count Axel Oxenstierna was appointed Lord High Chancellor, which he remained until Gustavus Adolphus's death, the two men struck a long and successful partnership and complemented each other well: In Oxenstierna's own words, his "cool" balanced the King's "heat". The war against Russia (the Ingrian War) ended in 1617 with the Treaty of Stolbovo, which excluded Russia from the Baltic Sea. The final inherited war, the war against Poland, ended in 1629 with the Truce of Altmark, which transferred the large province of Livonia to Sweden and freed the Swedish forces for subsequent intervention in the Thirty Years' War in Germany, where Swedish forces had already established a bridgehead in 1628. Brandenburg was torn apart by a quarrel between the Protestants and the Catholics. When Gustavus Adolphus began his push into northern Germany in June–July 1630, he had just 4,000 soldiers. But he was soon able to consolidate the Protestant position in the north, using reinforcements from Sweden and money supplied by France at the Treaty of Barwalde. Gustavus Adolphus was killed at the 1632 Battle of Lützen. Queen Maria Eleonora and the king's ministers took over the government of the Realm on behalf of Gustavus Adolphus' underage daughter Christina, until she reached the age of majority. Gustavus Adolphus is often regarded by military historians as one of the greatest military commanders of all time, with innovative use of combined arms.As the heiress presumptive, at the age of six Christina succeeded her father on the Swedish throne (being the only person left in the line of succession), although a regency government would rule in her name until she turned 18 years of age. During the regency, Chancellor Axel Oxenstierna wrote the 1634 Instrument of Government, which although never approved by any monarch, nevertheless would continue to have an important normative role in the state administration. Christina early on showed an interest in literature and the sciences and famously brought René Descartes to Sweden. Sweden continued to be involved in the Thirty Years' War during reign of Christina and that conflict was settled at the 1648 Peace of Westphalia, and the Swedish monarch received representation at the Imperial Diet due to the German conquests (Bremen-Verden and Swedish Pomerania) that were made. Having decided not to marry, Christina abdicated the throne on 5 June 1654 in favor of her cousin Charles Gustav, went abroad, and converted to Roman Catholicism.
Charles XI at the Battle of Lund in 1676. Painting by David Klöcker Ehrenstrahl
The Estates elected Charles X Gustav as their new King, and his short reign is best characterized by foreign wars: first a lengthy campaign within Poland and then with Denmark. In the latter case, the risky 1658 March across the Belts which resulted in the Treaty of Roskilde, would prove to be the largest permanent territorial gain Sweden ever had: Skåne, Blekinge and Bohuslän now became Swedish provinces and have remained so ever since. Charles X Gustav was not satisfied, as he wanted to crush Denmark once and for all, but the 1659 Assault on Copenhagen did not prove successful for the Swedes, largely due to the Dutch naval intervention to the aid of the Danes. Charles X Gustav died in Gothenburg in 1660 and as the Crown passed to his five-year-old son Charles XI, a new regency government would assume the responsibilities of the state. The regency government, composed of aristocrats and led by Chancellor Count Magnus Gabriel De la Gardie, was more interested in feathering their own nests rather than working in the interest of the country at large. When Charles XI came of age in 1672, the effectiveness of the armed forces had seriously deteriorated and the country was ill-prepared as the King of Denmark, Christian V, invaded to settle old scores. The Danes were ultimately unsuccessful in their attempts, and Charles XI undertook several measures to prevent what had just almost happened from occurring again: reducing the influence of the aristocracy by nationalizing estates and properties which had been handed out to them by his predecessors, introducing the Allotment system (Swedish: indelningsverket) which would form the basis of the armed forces until the 20th century, and with the support of the Estates he was declared in 1680 an absolute monarch. Charles XI was succeeded by his son, Charles XII, who would prove to be an extremely able military commander, defeating far larger enemies with the small but highly professional Swedish army. His defeat of the Russians at Narva when just 18 years old was to be his greatest victory. However his campaigning at the head of his army during the Great Northern War would ultimately lead to catastrophic defeat at the Battle of Poltava after which he spent several years in Turkey (now Moldova). Some years later he was killed at the Siege of Fredriksten during an attempt to invade Norway. The Swedish Age of Greatness (Swedish: stormaktstiden) had ended.
Crown Prince Charles John at the Battle of Leipzig (1813). Painting by Fredric Westin.
Charles XII's sister, Ulrika Eleonora, had now inherited the throne but she was forced by the Estates to sign the 1719 Instrument of Government, which ended the absolute monarchy and made the Riksdag of the Estates the highest organ of the state and reduced the role of monarch to a figurehead. The Age of Liberty (Swedish: frihetstiden) with its parliamentary rule, dominated by two parties – the Caps and the Hats – had begun. Ulrika Eleonora had had enough after a year on the throne and abdicated in favor of her husband, Frederick, who had little interest in the affairs of state and was elected King by the Estates as King Frederick I, resulting in the 1720 Instrument of Government: content-wise almost identical to the one from 1719. Despite having many extra-marital affairs, Frederick I never sired a legitimate heir to the throne.On 17 September 1809 in the Treaty of Fredrikshamn, as a result of the poorly managed Finnish War, Sweden had to surrender Finland to Russia. King Gustav IV Adolf and his descendants were deposed in a coup d'état led by dissatisfied army officers. The childless uncle of the former king was almost immediately elected as King Charles XIII. The Instrument of Government of 1809 put an end to royal absolutism by dividing the legislative power between the Riksdag (primary) and the king (secondary), and vested executive power in the king when acting through the Council of State. The present Bernadotte dynasty was established in September 1810 when the Riksdag, convened in orebro, elected French Marshal and Prince of Pontecorvo Jean-Baptiste Jules Bernadotte as crown prince. This took place because Charles XIII had no legitimate heir, and a crown prince previously elected in January 1810, Charles August, suddenly had died of a stroke during a military exercise. Although the 19th century Bernadotte monarchs that would follow Charles XIV John's reign tried to defend the power and privileges they still had, the tide incrementally turned against "personal regal rule" (Swedish: personlig kungamakt) with the growth of the liberals, social democrats, and the expansion of the franchise.When King Gustav V publicly objected to the defence budget cuts made by Prime Minister Karl Staaff and the cabinet just before the First World War in event known as the Courtyard Crisis accompanied by the Peasant armament support march (Swedish: bondetaget), it was seen as a deliberate provocation by conservatives and reactionaries against the uncodified norm of a parliamentary system supported by the liberals and the social democrats, leading to Staaff's resignation. Gustaf V then appointed a caretaker government, supported by the conservatives, led by legal scholar Hjalmar Hammarskjöld, which remained in power longer than expected due to the outbreak of World War I (in which Sweden remained neutral) and increased defence spending was no longer a controversial issue. Nevertheless, in the year of the outbreak of the Russian revolution, social tensions continued to rise; the general election in 1917 gave the liberals and social democrats greatly strengthened representation in both Riksdag chambers and a conservative government was no longer a defensible option. Following the definite breakthrough of parliamentarism in 1917, with the appointment of the coalition government of liberals and social democrats led by Professor Nils Edén, the political influence of the King was considerably reduced and an unwritten constitutional precedent was set that would remain in effect until 1975. Only during World War II, in the so-called Midsummer crisis (regarding the issue whether neutral Sweden should permit rail transport of German troops from Norway passing through to Finland), did Gustaf V allegedly try to intervene in the political process by threatening to abdicate.