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How did the Peace of Vervins help end the French Wars of Religion?

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Henry IV Henry IV, undated copperplate engraving.

The Peace of Vervins was a critical factor in ending the French Wars of Religion by neutralizing foreign interference in French domestic affairs.

Following his conversion to Roman Catholicism and the subsequent collapse of the Catholic League's internal resistance, Henry IV still faced significant opposition from Spain, which continued to fund and support remaining rebel factions within France, such as those led by the Duke de Mercoeur. By signing the Peace of Vervins with Spain on May 2, 1598, Henry IV secured formal recognition of his title as king from Philip II.12

This treaty effectively ended Spanish military intervention, which had been a primary driver of the conflict's final stages. Combined with the Edict of Nantes, which provided religious toleration for Protestants, the Peace of Vervins allowed Henry IV to consolidate his authority and finally conclude nearly 40 years of civil war that had threatened to disintegrate the kingdom.12