Charles X Gustav, also Carl X Gustav, was King of Sweden from 1654 until his death. He was the son of John Casimir, Count Palatine of Zweibrücken-Kleeburg and Catherine of Sweden. After his father's death he also succeeded him as Pfalzgraf. He was married to Hedwig Eleonora of Holstein-Gottorp, who bore his son and successor, Charles XI. Charles X Gustav was the second Wittelsbach king of Sweden after the childless king Christopher of Bavaria (1441–1448) and he was the first king of the Swedish Caroline era, which had its peak during the end of the reign of his son, Charles XI. He led Sweden during the Second Northern War, enlarging the Swedish Empire. By his predecessor Christina, he was considered de facto Duke of Eyland (Öland), before ascending to the Swedish throne. From 1655 to 1657, he was also Grand Duke of Lithuania.
The Instrument of Government of 1634 was a document describing the form and operation of the Swedish government, retrospectively regarded as the country's first constitution, although it was not intended to function as such. It was composed by the Lord High Chancellor, Axel Oxenstierna, and was adopted by the Riksdag of the Estates on 29 July 1634. It was rendered void when the Riksdag repudiated it in 1680.
Fredriksten is a fortress in the city of Halden in Norway.
The Battle of Lund, part of the Scanian War, was fought on December 4, 1676, in an area north of the city of Lund in Scania in southern Sweden, between the invading Danish army and the army of Charles XI of Sweden. The Danish had an army of about 13,000 under the personal command of 31-year-old King Christian V of Denmark, aided by General Carl von Arensdorff. The Swedish army, which numbered about 8,000, was commanded by Field Marshal Simon Grundel-Helmfelt and the 21-year-old Swedish king Charles XI. It is one of the bloodiest battles in percent of casualties on both sides ever fought in Scandinavia.
New Älvsborg, so-called to distinguish it from the earlier fortress at Old Älvsborg, is a sea fort on the island of Kyrkogårdsholmen within the urban area of modern Gothenburg, Sweden. Situated near the mouth of the Göta River, it protected what was at the time of its construction Sweden's only access to the North Sea and the Atlantic Ocean. Construction began in 1653, and the fortress remained in service until 1869, though it only saw significant action in one conflict, the Great Northern War.
The March Across the Belts was a military campaign waged by the Swedish Empire across the ice between the Danish islands. It lasted between 30 January and 15 February 1658, ending with a decisive victory for Swedish King Charles X Gustav during his first Danish war.
The Assault on Copenhagen also known as the Battle of Copenhagen on 11 February 1659 was a major engagement during the Second Northern War, taking place during the Swedish siege of Copenhagen.
The Dano-Swedish War of 1658–1660 was a war between Denmark–Norway and Sweden, with the former backed by the Dutch Republic and Poland. It is known in Denmark as the Second Karl Gustav War, in Norway as Bjelkes Feud in Sweden as Karl Gustav's Second Danish War, and in the Netherlands as the Swedish-Dutch War.
The Battle of Nyborg took place between Sweden and the combined forces of Denmark, Dutch naval forces under Michiel de Ruyter, troops of Brandenburg-Prussia, and Polish–Lithuanian Commonwealth forces under Stefan Czarniecki. The battle was engaged on 14 November 1659 at Nyborg on the Danish island of Funen. Nyborg was the final major battle of the Dano-Swedish War of 1658 to 1660.
The Battle of Bysjön was fought between Swedish and, for the most part, Norwegian troops on 22 December 1644. The battle took place on the ice of the frozen Lake Bysjön in the parish of Eda in Värmland, Sweden. The battle was part of the Torstenson War (1643-1645), known locally as the Hannibal Feud (Hannibalsfejden) between Sweden and Denmark-Norway. The Danish-Norwegian victory meant the invading army could potentially continue into Värmland and Dalsland.
The Attack on Marstrand was a successful Dano-Norwegian siege of the Swedish town of Marstrand and Carlsten fortress which took place between July 10 and July 16, 1719 during the end of the Great Northern War.
Curt Christoph von Koppelow or Cort Christopher von Caplau (1624–1705) was a German-Norwegian nobleman and officer in the Dano-Norwegian army. Von Koppelow was the commander of Munkholmen fortress in Trondheim, Norway, between 1700 and 1704. He was the father to Norwegian General Major Jürgen Christoph von Koppelow
The battles at Göta älv were a series of battles and sieges which took place in and around the Gothenburg area between 1717 and 1719, between the Swedish Empire and Denmark–Norway, during the Great Northern War.
The Great Sortie of Stralsund was fought in the Franco-Swedish War on 1–3 April 1807, in Swedish Pomerania. A French army under Édouard Mortier invaded Swedish Pomerania in early 1807 and initiated a blockade of the Swedish town of Stralsund, to secure the French rear from enemy attacks. After several smaller sorties and skirmishes around Stralsund, Mortier marched part of his army to support the ongoing Siege of Kolberg, leaving only a smaller force under Charles Louis Dieudonné Grandjean to keep the Swedes at check. The Swedish commander Hans Henric von Essen then commenced a great sortie to push the remaining French forces out of Swedish Pomerania. The French fought bravely on 1 April at Lüssow, Lüdershagen and Voigdehagen, but were eventually forced to withdraw; the Swedes captured Greifswald the next day, after a brief confrontation. The last day of fighting occurred at Demmin and Anklam, where the Swedes took many French prisoners of war, resulting in the complete French withdrawal out of Swedish Pomerania—while the Swedes continued their offensive into Prussia. After two weeks Mortier returned and pushed the Swedish forces back into Swedish Pomerania. After an armistice the French forces once again invaded, on 13 July, and laid siege to Stralsund, which they captured on 20 August; all of Swedish Pomerania was captured by 7 September, but the war between Sweden and France continued until January 6, 1810, when the Swedes were finally forced to sign the Treaty of Paris.
The Invasion of Courland (1658) was a Swedish campaign against the Duchy of Courland in 1658. It was led by Robert Douglas and resulted in the Swedes occupying Courland, capturing Mitau and the Duke of Courland. The initial invasion only lasted a few months, however the Swedes remained in Courland for 2 years.
The Battle of Ubagall was a battle between soldiers of Carl Henriksson Horn and a Russian force under the command of Tiesenhusen in the village of Ubagall in 1571.
The siege of Fredriksodde, also known as the Storming of Fredriksodde, was a successful Swedish siege of the fortress and town of Fredriksodde in 1657 during the Dano-Swedish War of 1657–1658. The siege and the subsequent capture of the fortress by Swedish forces completed the Swedish conquest of Jutland.
The Battle of Rautus kyrka was a failed Russian attempt to stop a Swedish relief force headed for Kexholm during the Russo-Swedish War (1656–1658). The Swedes, led by Christoffer Burmeister successfully repelled the Russian attack and forced them back.
The Battle of Nabe was fought between Danish and Swedish forces at Nabe on October 3 1657. The Swedes attacked the Danish redoubt and successfully captured both Danish commanders and crushed the popular resistance in Jutland as a consequence of the battle.
The Battle of Lälitz was an engagement fought between Swedish and Russian troops in the village of Lälitz in 17 July, 1657. It ended with the Russian troops being repulsed and their commander dying of his wounds sustained during the fighting.
Swedish Empire 
Denmark–Norway