Trianon Decree

August 5, 1810

The Trianon Decree, issued by Napoleon Bonaparte in 1810, was a key policy of the Continental System. This Decree added heavy tariffs to the Continental System, which affected American goods. This increased tensions that eventually led to the War of 1812.

Napoleon Bonaparte, In His Study, 1812, Portrait, David

Napoleon Bonaparte. Image Source: National Gallery of Art.

Essential Facts

Background

  • Britain and France were at war with each other during the Napoleonic Wars.
  • They were using blockades and trade embargoes to disrupt each other’s trade with foreign nations, such as the United States.
  • Britain used Orders in Council, while Napoleon Bonaparte, the French Emperor, used the Continental System.
  • The U.S. used economic sanctions to try to protect its trading rights.

Napoleon Expands the Continental System

  • The Trianon Decree was issued by Napoleon on August 5, 1810.
  • It expanded the Continental System and added tariffs on various products, including cotton, sugar, coffee, and spices. 
  • The tariff on raw cotton from the United States increased from 60 Francs to 800 Francs.

Additional Details

  • The U.S. Minister to France, John Armstrong Jr., sent President James Madison a copy of the tariff.
  • Armstrong suggested the tariffs contradicted the Cadore Letter because it added heavy tariffs on American products.
  • Madison and Armstrong interpreted the letter to mean that the U.S. would be able to trade with France without restrictions.
  • Despite the tariffs, the U.S. did not immediately retaliate.

Significance  

The Trianon Decree is important to American History because it increased tensions between the United States, Great Britain, and France and restricted American trade. The tensions contributed to the outbreak of the War of 1812.

Trianon Decree APUSH

The Trianon Decree is part of the following units, topics, and chapters in the AP US History curriculum:

Unit 4: 1800–1848

  • Topic 4.4 — America on the World Stage

American Pageant Notes

American History Central

Citation Information

The following information is provided for citations, including APA Style, Chicago Style, and MLA Style.

  • Article Title Trianon Decree
  • Date August 5, 1810
  • Author
  • Keywords Trianon Decree, Continental System
  • Website Name American History Central: The Encyclopedia of American History
  • Publisher American History Central
  • Producer R.Squared Communications, LLC
  • Date Published
  • Last Update August 5, 2026
  • Access Date October 5, 2026

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