War of the Austrian Succession (1740–1748)

The War of the Austrian Succession (1740–1748) was a major European conflict triggered by the contested succession of Maria Theresa to the Habsburg Monarchy.

Causes

• The war began after the death of Emperor Charles VI (1740), who had issued the Pragmatic Sanction of 1713 to secure his daughter Maria Theresa’s succession.
• Many European powers had recognized this agreement, but when Charles died, rivals (notably Prussia, France, Bavaria, and Spain) challenged it.
• The immediate spark came when Frederick II of Prussia (Frederick the Great) invaded Silesia, seeking to expand his territory.

Main Players

• Maria Theresa (Austria/Habsburg Monarchy): Defending her inheritance.
• Prussia (Frederick the Great): Ambitious territorial expansion in Silesia.
• France & Spain: Opposed Habsburg power, supported Bavarian claims.
• Britain & the Dutch Republic: Backed Austria, mainly to counterbalance France.
• Bavaria & Saxony: Regional challengers with dynastic claims.

Theaters of War

• Central Europe: Silesian Wars between Austria and Prussia.
• Western Europe: Britain and France fought in the Low Countries.
• Italy: Austrian vs. Bourbon (Spanish/French) ambitions.
• Colonial Fronts: Known as King George’s War in North America (part of the larger conflict).

Key Events

• Battle of Mollwitz (1741): Frederick’s Prussians defeated Austria—establishing Prussia’s strength.
• Charles Albert of Bavaria briefly became Holy Roman Emperor (as Charles VII), though he struggled to maintain control.
• British victories at Dettingen (1743) and support for Maria Theresa stabilized her rule.
• War dragged on with shifting alliances and mixed outcomes.

Resolution

• The Treaty of Aix-la-Chapelle (1748) ended the war:
  • Maria Theresa was recognized as ruler of the Habsburg lands.
  • Prussia retained Silesia, greatly boosting its power.
  • Colonies captured in the fighting (e.g., Louisbourg) were largely returned to pre-war owners.

Consequences

• Austria survived but was weakened; Maria Theresa began military and bureaucratic reforms.
• Prussia emerged as a great power, setting the stage for its rivalry with Austria in Germany.
• The balance of power in Europe shifted, paving the way for the Seven Years’ War (1756–1763).

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