The Treaty of the Pyrenees is the last major diplomatic achievement by Cardinal Mazarin. Combined with the Peace of Westphalia, it allowed Louis XIV remarkable stability and diplomatic advantage by means of a weakened Louis II de Bourbon, Prince de Condé and a weakened Spanish Crown, along the agreed dowry, which was an important element in the French king's strategy.
All in all, in 1660, when the Swedish occupation of Poland finished, the entire European continent was at peace, and the Bourbons prevailed for the first time over the Habsburgs.
In the context of the territorial changes involved by the Treaty, France got some territorial gains, both in its northern and southern borders.
In the north, France gained the French Flanders.
In the south, the pays of Roussillon, Conflent, Vallespir, Capcir and French Cerdagne, known nowadays in Catalonia as "Northern Catalonia" was transferred to France. Every year on 7 November, some Catalanists remember this event and demonstrate in Perpignan.