Monarch's Quest For Silesia: War With Austria

which monarch went to war with austria to gain silesa

The mid-18th century saw three Silesian Wars fought between Prussia, under King Frederick the Great, and Austria, under Empress Maria Theresa, for control of the region of Silesia. The First Silesian War (1740–1742) and the Second Silesian War (1744–1745) were fought as part of the War of the Austrian Succession, while the Third Silesian War (1756–1763) was a theatre of the Seven Years' War. All three conflicts ended in Prussian control of Silesia, with the First and Second Silesian Wars resulting in the Treaty of Berlin and the Treaty of Dresden, respectively, both of which recognised Prussia's seizure of most of Silesia. The Third Silesian War ended with an armistice and the Treaty of Hubertusburg, which acknowledged the status quo.

Characteristics Values
Name of Monarch King Frederick II of Prussia
Popular Name Frederick the Great
Dynasty House of Hohenzollern
Opponent Empress Maria Theresa of Austria
Opponent's Dynasty House of Habsburg
War Silesian Wars (First, Second, and Third)
Dates of Wars 1740-1742, 1744-1745, 1756-1763
Region Involved Silesia (now in south-western Poland)
Outcome Prussian victory and acquisition of Silesia

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King Frederick II of Prussia invades Silesia

King Frederick II of Prussia, also known as Frederick the Great, invaded Silesia in December 1740, marking the start of the First Silesian War. This war was fought between Prussia and Habsburg Austria, which was ruled by Empress Maria Theresa. The invasion was justified on dynastic grounds, but it also held significant economic and strategic benefits for Prussia. Within seven weeks, Frederick had occupied almost all of Silesia, adding one of the most densely industrialised regions to his kingdom and gaining control of the navigable Oder River. This occupation nearly doubled Prussia's population and increased its territory by a third.

The invasion of Silesia was influenced by the death of Holy Roman Emperor Charles VI in 1740. With no male heir, Charles was succeeded by his eldest daughter, Maria Theresa, leading to a contested female succession. Frederick viewed this as an opportune moment for the seizure of Silesia, deeming the Pragmatic Sanction of 1713, which established Maria Theresa's right to the Habsburg monarchy, as not applicable to the region. He argued that the Habsburgs held Silesia as part of the imperial demesne rather than a hereditary possession.

The First Silesian War was part of the wider War of the Austrian Succession, which saw Prussia as a member of a coalition seeking territorial gains at Austria's expense. The conflict widened, drawing in other powers such as France, Bavaria, Saxony, Spain, and Naples, who attacked Austria on multiple fronts. Despite Austria's efforts to regain Silesia, the war ultimately ended in a Prussian victory, confirming their control over the region.

The Second (1744-1745) and Third Silesian Wars followed, with the latter being a theatre of the global Seven Years' War. These conflicts further solidified Prussia's dominance over Silesia and established an Austria-Prussia rivalry that would define German politics for the next century. The Silesian Wars elevated Prussia to the status of a European great power and demonstrated the need for sustained reform within the Habsburg monarchy to retain its dominant position.

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The War of Austrian Succession

The War of the Austrian Succession was a European conflict fought between 1740 and 1748. The war was fought primarily in Central Europe, the Austrian Netherlands, Italy, the Atlantic Ocean and the Mediterranean Sea. The conflict was sparked by the death of Emperor Charles VI in 1740 and the subsequent inheritance of the Habsburg monarchy by his daughter, Maria Theresa.

Maria Theresa's right to succeed her father was disputed by Prussia, Bavaria, and Saxony, who saw it as an opportunity to challenge Habsburg power. In December 1740, King Frederick the Great of Prussia invaded and quickly occupied the prosperous, resource-rich, and strategically located Austrian province of Silesia, marking the onset of the War of Austrian Succession. Frederick aimed to unify his disconnected lands and disputed Maria Theresa's succession to the Habsburg lands while making his own claim on Silesia.

As the conflict widened, it drew in other participants, including France, Spain, Sardinia, Sweden, and Russia. The British tried to avoid large-scale commitments of troops on the Continent and instead sought to offset this disadvantage by allying themselves with Continental powers whose interests were antithetical to those of their enemies, particularly France. In the War of the Austrian Succession, the British were allied with Austria, but by the time of the Seven Years' War, they were allied with Prussia.

The war was fought across multiple fronts and involved several significant battles. In February 1744, a combined Franco-Spanish fleet fought an indecisive action with a British naval force commanded by Admiral Mathews in the Battle of Toulon. In April, Spain captured the important port of Villefranche-sur-Mer in Northern Italy. In May 1743, Maria Theresa was crowned Queen of Bohemia in Prague, symbolising the successful recovery of power in Bohemia. In August 1744, Prussia once again invaded Bohemia, triggering the Second Silesian War, which ended in 1745 with the Treaty of Dresden.

The War of the Austrian Succession ended in 1748 with the Treaty of Aix-la-Chapelle, which confirmed Maria Theresa as ruler of the Habsburg Monarchy but failed to resolve underlying tensions between the signatories. Prussia was considered the clearest winner of the war, having acquired Silesia from Austria. This outcome undermined the long-standing Anglo-Austrian Alliance and set the scene for the outbreak of the Seven Years' War in 1756.

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Prussia's seizure of Silesia

The Kingdom of Prussia's ruling House of Hohenzollern held dynastic claims to several duchies within the Habsburg province of Silesia, a populous and prosperous region contiguous with Prussia's core territory in the Margraviate of Brandenburg. In 1740, King Frederick II of Prussia saw an opportunity to press these claims when Habsburg Holy Roman Emperor Charles VI died without a male heir, leaving his eldest daughter, Maria Theresa, as the ruler of Austria and the Bohemian and Hungarian lands within the Habsburg monarchy. Frederick contested the succession, arguing that the Pragmatic Sanction of 1713, which had established Maria Theresa as the successor to Charles VI's hereditary titles, did not apply to Silesia, which the Habsburgs held as part of the imperial demesne rather than as a hereditary possession.

The First Silesian War began in late 1740 with a Prussian invasion of Habsburg Silesia. Prussia, allied with France, Bavaria, and Saxony, defeated the Habsburg monarchy, resulting in the 1742 Treaty of Berlin, which recognised Prussia's seizure of most of Silesia and parts of Bohemia. The seizure of Silesia was welcomed by many Silesians, particularly the Protestants and Germans, as it brought more efficient administration and greater attention to the region's economic development.

The Second Silesian War took place from 1744 to 1745 and resulted in further territorial gains for Prussia in Austria's expense. The Third Silesian War lasted from 1756 to 1763 and confirmed Prussia's control of Silesia. The war was fought mainly in Silesia, Bohemia, and Upper Saxony, and despite Austria's alliance with Russia and Britain, it ended in a stalemate, with neither side gaining any territory. However, the Treaty of Aix-la-Chapelle, which concluded the Seven Years' War, recognised Prussia's sovereignty in Silesia, although Austria refused to ratify the agreement.

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The rivalry between Austria and Prussia

The rivalry began in the mid-18th century, with the Silesian Wars, which were fought for control of the Central European region of Silesia (now in southwestern Poland). The First and Second Silesian Wars were fought as part of the wider War of the Austrian Succession, which was triggered by the death of Holy Roman Emperor Charles VI in 1740. With no male heir, Charles had established his eldest daughter, Maria Theresa, as the successor to his hereditary titles through the Pragmatic Sanction of 1713. However, upon his death, Prussia, Bavaria, and Saxony contested Maria Theresa's rule, seeing it as an opportunity to challenge Habsburg power. King Frederick II of Prussia, also known as Frederick the Great, seized the opportunity to invade and occupy Silesia, arguing that the Pragmatic Sanction did not apply to the region. The First and Second Silesian Wars ended in Prussian victories, with Prussia successfully defending its claims to Silesia.

The Third Silesian War, lasting from 1756 to 1763, was fought mainly in Silesia, Bohemia, and Upper Saxony and formed a theatre of the global Seven Years' War. This war again confirmed Prussia's control of Silesia, despite Maria Theresa's determination to regain the province. The Silesian Wars elevated Prussia to the status of a European great power and established an Austria-Prussia rivalry that would define German politics for the next century.

The rivalry continued to escalate with the Austro-Prussian War of 1866, which was sparked by a dispute over the administration of Schleswig-Holstein, conquered from Denmark by the combined forces of Austria and Prussia in the Second Schleswig War of 1864. Prussia, with the support of Italy, challenged Austria's decision to allow the estates of the duchies to call up a united assembly, claiming it breached their joint sovereignty. The Austro-Prussian War resulted in Prussian dominance over the German states and the unification of northern German states, excluding Austria and the other southern German states. This shift in power further solidified the rivalry between Austria and Prussia.

The competition between the two powers extended beyond territorial disputes. After the Protestant Reformation, the Catholic Habsburgs struggled to strengthen their authority, while the progressive state of Brandenburg-Prussia, with its highly effective army, posed a growing challenge to Habsburg claims to power. The rivalry also influenced the debate around the unification of Germany, with "Lesser Germany" favouring Protestant Prussia annexing all German states except Austria, and "Greater Germany" advocating for Catholic Austria to control the separate German states. Ultimately, Germany was unified under Prussia in 1871, forming the German Empire, and the rivalry between Austria and Prussia began to subside after the Congress of Berlin in 1878.

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Maria Theresa's attempts to regain Silesia

The opportunity for Brandenburg-Prussia to challenge her succession arose due to the absence of a male heir, despite her father's efforts to secure her position through the Pragmatic Sanction of 1713. This resulted in the War of the Austrian Succession, during which Prussia, led by Frederick II, invaded and occupied the affluent Habsburg province of Silesia.

Maria Theresa's main objective during this conflict was to regain Silesia. She demonstrated her firmness and resolve, even releasing Marshal Wilhelm Reinhard von Neipperg from prison to lead the Austrian troops. However, they suffered a crushing defeat at the Battle of Mollwitz in April 1741. Despite this setback, she continued her efforts and launched the Second Silesian War in 1744. Although she managed to force Saxony out of the war and secure recognition of her right to the Monarchy through the Treaty of Dresden, she was unable to regain Silesia.

The Treaty of Aix-la-Chapelle in 1748 ended the War of the Austrian Succession and confirmed Prussian control over Silesia. However, Maria Theresa still refused to ratify the agreement and set about rebuilding her military forces and forging new alliances. She formed a defensive agreement with Empress Elizabeth of Russia, known as the Treaty of Two Empresses, which aligned Austria and Russia against Prussia.

In 1756, the rivalry between Maria Theresa and Frederick II escalated into the global conflict known as the Seven Years' War. Despite her efforts, Maria Theresa was ultimately unable to regain Silesia, and the Prussian victory in the Battle of Leuthen dealt a severe blow to Austrian morale. After the disappointment of the Third Silesian War, Maria Theresa finally abandoned her attempts to recover Silesia, choosing to focus on domestic reforms to strengthen her realm for future conflicts with Prussia.

Frequently asked questions

King Frederick II of Prussia, also known as Frederick the Great, went to war with Austria to gain control of Silesia.

Frederick II wanted to gain control of Silesia due to Prussia's centuries-old dynastic claims on parts of the region.

Yes, Frederick II was successful in gaining control of Silesia. The First Silesian War (1740-1742) ended with the Treaty of Berlin, which recognised Prussia's seizure of most of Silesia and parts of Bohemia. The Second (1744-1745) and Third Silesian Wars (1756-1763) also ended in Prussian victories, confirming their control over Silesia.

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