The Thirty Years' War ended with the Treaty of:

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The Thirty Years' War (1618-1648) was one of the most destructive conflicts in European history, fought primarily in the territories of the Holy Roman Empire. It began as a religious conflict between Protestant and Catholic states but evolved into a broader struggle for political dominance involving major European powers including France, Sweden, Spain, and the Habsburg Empire.

The war ended with the Peace of Westphalia in 1648, which actually comprised two separate treaties signed in the Westphalian cities of Osnabruck and Munster. The Peace of Westphalia is considered a landmark in international relations because it established several enduring principles: the sovereignty of individual states, the right of rulers to determine the religion of their own territory (building on the earlier Peace of Augsburg), and the concept of non-interference in the internal affairs of sovereign states. It effectively ended the idea of a unified Christian empire in Europe and laid the foundation for the modern state system.

The other treaties belong to different conflicts. The Treaty of Utrecht (1713) ended the War of the Spanish Succession. The Treaty of Paris has been used for several agreements, most notably in 1763 (Seven Years' War) and 1783 (American Revolution). The Treaty of Versailles (1919) ended the First World War.