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What role did Jules Mazarin play in the Peace of Westphalia?

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Jules, Cardinal Mazarin Jules, Cardinal Mazarin, detail of a portrait by Philippe de Champaigne; in the Musée Condé, Chantilly, France.

As first minister of France, Jules Mazarin played a pivotal role in the Peace of Westphalia, which was signed in October 1648 and established peace in Germany.1

Upon assuming power following the deaths of Cardinal Richelieu and Louis XIII, Mazarin actively promoted the peace negotiations that began in Münster on April 10, 1644. While he personally held an ideal of ending the rivalry between Catholic powers, he subordinated this goal to French foreign policy and national ambitions.1

To secure a favorable outcome, Mazarin exercised firm control over a skilled diplomatic team and relied on the military successes of his generals, Louis II de Bourbon, prince de Condé and Henri de Turenne, whose victories over imperial and Spanish troops were instrumental in bringing about the final settlement. Following the treaty, Mazarin continued to navigate the complex geopolitical landscape, working to protect French interests against the Habsburgs and eventually negotiating further peace settlements with Spain and other European powers.1