 These were more significant than often assumed; in combination with the 1648 Treaty of Münster, France strengthened its borders in the east and south-west, while in 1662, Charles II sold Dunkirk to France.Acquisition of Roussillon established the Franco-Spanish border along the Pyrenees, but divided the historic Principality of Catalonia, commemorated each year by French Catalan-speakers in Perpignan.France withdrew support from Afonso VI of Portugal, while Louis XIV renounced his claim to be Count of Barcelona, and king of Catalonia.