War of the Fourth Coalition

Quick Facts: Who was War of the Fourth Coalition?

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War of the Fourth Coalition

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A major 1806–1807 conflict of the Napoleonic Wars involving a multinational coalition against France.

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Origins & Early Life

The War of the Fourth Coalition (French: Guerre de la Quatrième Coalition) was a war spanning 1806–1807 that saw a multinational coalition fight against Napoleon's French Empire, subsequently being defeated. The main coalition partners were Prussia and Russia with Saxony, Sweden, and Great Britain also contributing. Excluding Prussia, some members of the coalition had previously been fighting France as part of the Third Coalition, and there was no intervening period of general peace. On 9 October 1806, Prussia declared war on France and joined a renewed coalition, fearing the rise in French power after the defeat of Austria and establishment of the French-sponsored Confederation of the Rhine in addition to having learned of French plans to cede Prussian-desired Hanover to Britain in exchange for peace. Prussia and Russia mobilized for a fresh campaign with France, massing troops in Saxony.

Career & Major Achievements

Napoleon decisively defeated the Prussians in an expeditious campaign that culminated at the Battle of Jena–Auerstedt on 14 October 1806. French forces under Napoleon occupied Prussia, pursued the remnants of the shattered Prussian Army, and captured Berlin. They then advanced all the way to East Prussia, Poland and the Russian frontier, where they fought an inconclusive battle against the Russians at the Battle of Eylau on 7–8 February 1807. Napoleon's advance on the Russian frontier was briefly checked during the spring as he revitalized his army with fresh supplies. Russian forces were finally crushed by the French at the Battle of Friedland on 14 June 1807, and three days later Russia asked for a truce.

Enduring Legacy & Impact

The war also saw the end of the British invasions of the River Plate where two unsuccessful British attempts to seize control of the Spanish colony of the Viceroyalty of the Río de la Plata, located around the River Plate in South America when the Spanish Empire was still an ally of Napoleonic France against Britain. Through the Treaties of Tilsit in July 1807, France made peace with Russia, which agreed to join the Continental System. The treaty was particularly harsh on Prussia, however, as Napoleon demanded much of the Prussian territory along the lower Rhine west of the Elbe and in what was part of the former Polish–Lithuanian Commonwealth. Respectively, these acquisitions were incorporated into the new Kingdom of Westphalia, led by his brother Jérôme Bonaparte and into the new Duchy of Warsaw, a Polish client state, ruled by his new ally the king of Saxony. At the end of the war, there was peace on Continental Europe with Napoleon as master of almost all of western and central continental Europe, except for Spain, Portugal, Austria and several other smaller states.

Chronological Milestones & Life Events

1. 1806: 1806 Milestone — The War of the Fourth Coalition (French: Guerre de la Quatrième Coalition) was a war spanning 1806–1807 that saw a multinational coalition fight against Napoleon's French Empire, subsequently being defeated.
2. 1807: 1807 Milestone — They then advanced all the way to East Prussia, Poland and the Russian frontier, where they fought an inconclusive battle against the Russians at the Battle of Eylau on 7–8 February 1807.

Historical Fact-Check Quiz: War of the Fourth Coalition

True or False: “Did the War of the Fourth Coalition immediately lead to Napoleon's complete dominance over all of Western Europe?”

Answer (FALSE ❌): While Napoleon was master of most of continental Europe after this war, Britain remained at war with France, and conflicts continued in Portugal and Spain.

Contemporary Figures & Related Historical Timelines

• Augustus De Morgan — Historical peer (Born in 1806) (1806): Pioneering logician known for De Morgan's laws and mathematical induction.
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• Angelica Kauffman — Historical peer (Died in 1807) (1807): Swiss history painter renowned for her successful careers in London and Rome.

Frequently Asked Questions about War of the Fourth Coalition