The new border between Spain and France, 1659.

via cartesdhistoire

Source: “Atlas de Historia de España”, Fdo García de Cortázar, Planeta, 2005

Within the framework of the Thirty Years’ War, France declared war on Spain in May 1635. Starting in 1639, the French army invaded Roussillon, beginning with the occupation of the fortress of Salses. Richelieu fueled the revolt of the Catalans against Philip IV (started in June 1640), granting the insurgent leaders and troops the protection of French sovereignty (recognized by the insurgents in January 1641). Catalonia’s return to Spanish obedience was effective only in October 1652 when Barcelona surrendered.

The fatigue produced by the French occupation, whose army was as burdensome or more burdensome than the Spanish and whose policy was more absolutist and inconsiderate than that of Olivares, alienated the population from the French, but Richelieu’s move later served Louis XIV.

Indeed, the Peace of Westphalia (1648) did not put an end to the Franco-Spanish War, which ended with the defeat of Las Dunas (June 14, 1658). June 25, 1658, was the “folle journée” of neighboring Dunkirk: the city, Spanish in the morning, was taken by the French at noon and they handed it over to their ally England in the afternoon (it will be definitively French in 1662) .

The Peace of the Pyrenees (November 1659) meant the loss of Roussillon and Upper Cerdanya, with the establishment of the “dean border of Europe” between France and Spain. It also meant the definitive end of Spanish hegemony. On the other hand, one of the clauses of the treaty, which agreed to the marriage of Louis by a financially exhausted country), would later justify French interventionism in the Netherlands and, above all, would pave the way for the Spanish Crown to fall at the end of the century to the Bourbons, the current reigning dynasty in Spain.