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Swedish invasion of Poland (1701–1706)
Part of Great Northern War
Battle of Düna, 1701
Battle of Düna, the first major battle of the Swedish invasion
Date 1701-1706
Location Polish-Lithuanian Commonwealth territory, Eastern Europe
Result Swedish victory
Sweden Swedish Empire
Royal Banner of Stanisław Leszczyński.svg Stanisław's faction
Flag of Electoral Saxony.svg Electorate of Saxony
Polish Royal Banner of The House of Wettin.svg Poland–Lithuania
Russia Tsardom of Russia
Flag of the Cossack Hetmanat Cossack Hetmanate
Commanders and leaders
Sweden Karl XII
Sweden Arvid Horn
Sweden Carl Gustav Rehnskiöld
Sweden Magnus Stenbock
Sweden Adam Ludwig Lewenhaupt
Wappen Herzogtum Holstein 1703 Frederick IV
Wappen Herzogtum Holstein 1703 Duke Charles
Royal Banner of Stanisław Leszczyński.svg Stanisław I Leszczyński
Royal Banner of Stanisław Leszczyński.svg Józef Potocki
Electorate of Saxony Polish Royal Banner of The House of Wettin.svg Augustus II
Electorate of Saxony Heinrich Flemming
Electorate of Saxony Matthias Schulenburg
Russia Peter I
Russia Aleksandr Menshikov
Russia Boris Sheremetev
Flag of the Cossack Hetmanat Ivan Mazepa
Golden Horde flag 1339 Ayuka Khan
40,000 men[1] 120,000 men[1]
Casualties and losses
2,880 killed
3,848 wounded
1,800 captured
43,894 killed
6,382 wounded
16,447 captured

The Swedish invasion of Poland (1701–1706), also known as Charles XII's invasion of Poland or the Polish front of the Great Northern War, was a conflict in eastern Europe overshadowed by the ongoing Great Northern War fought between the Swedish Empire against the Russian Empire, Denmark-Norway, Saxony and the Polish-Lithuanian Commonwealth. The Polish front was a major part of the greater conflict, and it included some decisive battles in favor of the Swedes that contributed to the length of the war (21 years).


Augustus the Strong had won the Polish crown by military force after a violent election. Among his opponents were the primates of Poland, most notably cardinal Michał Stefan Radziejowski, archbishop of Gniezno, as well as the powerful Sapieha family. Although these factions had promised not to work against Augustus, the agreement was very unstable. To increase his own authority and put down any rebellious elements within his country, the elected monarch considered an invasion of Livland to be the best choice: not only would this restore a part of Poland's former territorial conquests, but it would also put down the Swedish Empire's ability to interfere with Polish affairs. With promised support from tsar Peter in Russia, and Sweden's ongoing conflict with Denmark-Norway in the west, the Polish monarch believed it to become an easy victory. This was in opposition with the nobility, however, and his ambitions were not well-received among any of his advisors, pointing out that Poland-Lithuania was not allied with Denmark nor Russia in the Swedish conflict. Simultaneously, Karl XII announced his intentions to maintain peace with the Polish-Lithuanian Commonwealth, but that such a thing would hardly be possible as long as Augustus remained on the throne. Accordingly, the Swedish leadership issued a declaration of war against Augustus personally, but not against his nation, and Karl XII began to rally the Polish nobility against their king.

Without making the abdication of Augustus II an absolute condition, Karl XII did put all his efforts into reaching this goal. The Swedish ambition was to create a powerful Polish government that would be able to maintain independence from Sweden's enemies, as well as cooperating with Sweden against these nations. However, the pro-Swedish nobility could do little to overthrow Augustus, who received support in many forms from the Russian Empire, and Poland-Lithuania was on the brink of a civil war as of 1701.

The Swedish InvasionEdit

After forcing a peace treaty with Denmark and annihilating the Russian army at Narva, Karl XII's plan was to beat the Saxon army; a necessity for the Swedish army to march for Pskov and Moscow and bring Russia the final blow. The two forces collided on the ninth of July (Swedish calendar) of 1701 near the Swedish city of Riga. The Saxons had entrenched themselves with heavy artillery support south of the river Düna, but when the Swedes attacked their casualties were limited to 100 men dead, due to the poor accuracy of the enemy artillery and the water that negated explosive shells. The Saxon lines collapsed as soon as the Swedish army landed on the river bank, and up to 2,000 of Augustus' soldiers were killed. However, the Saxon army and their Russian reinforcements managed to retreat and maintain a sizeable force near the Swedish border. Karl XII was now forced to choose between marching into Poland and be attacked from behind by the Russians or the other way around. He chose the former, and thus the invasion of Poland had begun.

After crushing his enemies once more in the battle of Klissow, Karl XII considered a quick strike into Saxony and destroy the heart of Augustus' government (Poland-Lithuania and Saxony were in a personal union at this time, and the entire Polish government was located in Saxony). However, he rejected this idea, partly because the naval powers of Europe had claimed that such an operation into the Holy Roman Empire would benefit the French king Louis XIV, who was at war with Leopold I in the War of the Spanish Succession. Another important factor to why the campaign was abandoned was Karl XII's will to create a public opposition against Augustus in Poland, which would be difficult if the people were victims to a Swedish invasion. Because of this, Karl XII's upcoming campaigns would be aimed at destroying the Polish military in the field while avoiding sieges or skirmishes. Only by crushing the Polish-Lithuanian army, Karl XII thought he would be able to turn the Polish people against Augustus.

The king let his troops rest near Krakow, where he broke his thigh bone in a riding accident (a wound that would affect him for the rest of his life). Meanwhile, Augustus had tried to gather his supporters to create a confederation and use military force to keep Greater Poland down, after which he would try to strengthen his diplomatic ties with Frederick I of Prussia. However, his plans were ruined when Karl XII routed the Polish army at Pułtusk and took the city of Thorn after a quick siege.

With his threatening position near Prussia's borders, Karl XII convinced (alternatively, forced) Frederick to sign a non-aggression pact with the Swedish empire (something that would be violated by Frederick in 1715, when Prussia attacked Swedish settlements in northern Germany). Augustus once more tried to gather supporters in Lublin, but the parliament of Poland was divided when the officials of Greater Poland refused to accept Augustus as their king.

Stanisław LeszczyńskiEdit

Mányoki Stanislaus Leszczyński

Stanisław I Leszczyński as king of Poland, being elected in 1704

The voivode of Poznań, Stanisław Leszczyński, organized a confederation in Greater Poland in protest against Augustus' violent actions. The confederation in question eventually won many supporters, many of whom feared a Russian invasion and believed Swedish protection to be the only way to defend themselves. Even cardinal Radziejowski, who had previously spoken of the importance of neutrality, now claimed that an alliance with the Swedes was necessary for Poland's survival.

A confederation in Warsaw between January and February 1704 declared that king Augustus was no longer king of Poland, and a new election took place. However, before the election could begin, the leading candidate for the Polish throne, James Sobieski, was imprisoned by Augustus' forces and would remain in jail for two years along with his brother, Konstanty. Yet the king's efforts were in vain, and under the protection of the Swedish military the council members in Greater Poland could safely elect Stanisław Leszczyński as king of Poland-Lithuania on 2 July 1704. His royal title would be Stanisław I (the surname Leszczyński would still remain in use).

Karl XII now decided to aim a decisive strike against the regions supportive of Augustus, namely Lesser Poland, but while Karl XII was besieging Lviv, Augustus moved his forces north to unite with the recently arrived Saxon army and attack the defenseless city of Warsaw, taking Arvid Horn prisoner. Fearing Swedish retaliation, Augustus then moved west in an evasive maneuver, taking his cavalry forces towards Kraków to lure the Swedes south while the main army led by Schulenburg would lead the grand army back to Saxony. But Karl XII was not to be fooled and immediately chased Schulenburg to annihilate the Saxon grand army. After an extraordinary marching prestation (500 km in nine days), the Swedish troops caught up with the retreating Saxons at Punitz, near the border of Silesia. In a forced battle on 28 October 1704, Karl XII ran down a certain amount of Saxon troops with his 2,300 cavalrymen, but Schulenburg's army was not completely destroyed.

During 1705 the faction supporting Stanisław and the Swedes grew considerably, and the new king could be crowned in September, and with his new authority as king Stanisław signed the treaty of Warsaw, ending the Polish-Swedish war. Under the influence of Karl XII, the treaty included that Poland would join the war against Russia and that Polish Protestants would be given certain rights to exercise their faith.

War in SaxonyEdit

When the fighting between Sweden and Poland had ceased the task remained for Karl XII to secure the new order against coup attempts from the Saxons and Augustus' ally tsar Peter. Throughout the time of the war Peter had been desperately trying to modernize his outdated army after the defeat at Narva, even though the Russian military was adequate to operate against poorly defended cities throughout the Swedish Baltic provinces. After Wolmar von Schlippenbach's failures in the battles of Erastfer and Hummelshof, the Russians had conquered Nöteborg and Nyenskans, as well as beginning the construction of Petersburg, which would become their first naval base in the Baltic sea. Throughout 1704 Dorpat and Narva had also been lost. However, the Russians had failed to drive the Swedes out of Courland, and thus the Swedes remained in control of the eastern Baltic sea and were able to maintain a steady supply of resources to the army in Poland. This has been credited to Adam Ludwig Lewenhaupt for his victories at Jakobstadt and Gemauerthof.

To gain an advantage in the Great Northern War, Peter was eager to strengthen the power of Augustus in Poland. For this purpose he had sent a large force to the area and in the autumn of 1705 he personally met with Augustus in Grodno to negotiate about what actions should be taken. While Carl Gustaf Rehnskiöld protected western Poland, Karl XII rapidly led his men towards Grodno around new year 1706 hoping to capture Augustus, who was protected by a Russian task force under field marshal Georg Benedict Ogilvy. Augustus had heard of the Swedish advance and quickly escaped the city along with a large cavalry force and then tried to attack Rehnskiöld's army together with a Russian-Saxon army under Matthias von der Schulenburg. However, Rehnskiöld's excellent tactics and relentless offensives quickly overwhelmed the numerically superior enemy in the battle of Fraustadt, and of 20,000 alliance troops only a quarter managed to escape while Sweden lost as few as 400 men.

With the decisive Swedish victory the threat from Saxony was gone, and Karl XII could now concentrate on chasing the Russians out of eastern Poland. The peace of Altranstädt was enforced on 14 September 1706, in which Augustus renounced his claims to the Polish throne and recognized the leadership of Stanisław.


At this time the Great Northern War was no longer an isolated conflict and begun to involve the great powers of western Europe as Karl's reputation as an undefeated military genius spread. Prussia, which had maintained a stance of neutrality now forged an alliance with Sweden in August 1707, possibly out of fear rather than tactical gains. Louis XIV of France also paid close attention to the conflict and reached out to Karl XII with a proposal that Sweden would join the ongoing War of Spanish Succession. For some time this was a very possible event as the Holy Roman Empire had supported Augustus in the war as well as taking in fleeing alliance troops, but France's hopes of Swedish support were lost when the English statesman John Churchill Marlborough personally visited Karl XII and pleaded for him not to intervene. The Holy Roman Emperor signed a treaty with Sweden on 22 August 1707 where he made amends to the Swedish king and agreed to give the Protestants in Silesia more religious rights. This was also a signal to non-Catholics in the rest of the Empire - particularly Hungary - that if they ever came into conflict with the catholic government then Sweden would aid them. After this the Emperor was careful to take any steps against Sweden, further enhancing the image of Karl XII as a feared and powerful ruler in Europe.

The following year, Karl XII launched the invasion of Russia.


Battle Swedish numbers Coalition numbers Swedish casualties Coalition casualties Result
Düna 7,156 19,000 500 4,200 Decisive Swedish victory
Klissow 12,000 23,800 1,100 4,400 Decisive Swedish victory
Saladen 1,100 6,000 167 2,076 Swedish victory
Pułtusk 3,000 3,500 58 1,700 Swedish victory
Thorn 26,000 6,000 50 5,860 Swedish victory
Jakobstadt 5,500 15,000 224 2,817 Decisive Swedish victory
Poznań 2,700 6,200 300 1,000 Swedish victory
Punitz 5,200 4,100 230 500 Swedish tactical victory
Gemauerthof 7,000 17,000 1,800 5,000 Swedish victory
Warsaw 2,000 9,500 300 1,800 Decisive Swedish victory
Grodno 20,000 23,000 100 17,000 Swedish victory
Fraustadt 9,400 20,000 1,400 15,277 Decisive Swedish victory
Kletsk 1,500 4,700 31 4,070 Swedish victory
Kalisz 14,000 36,000 4,900 3,000 Coalition victory

Sources and further readingEdit

  • Stormaktens Sista Krig, O. Larsson (2009)
  • Sjöström, Oskar (2008). Fraustadt 1706. Ett fält färgat rött (in Swedish). Lund: Historiska Media.


  1. 1.0 1.1 Forces during the Grodno campaign in 1705. Sjöström (2008), p.69

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