Since the 13th of August, Cardinal Mazarin had been officially negotiating with Don Louis de Haro, representing Philip IV.

The ministers had held a meeting in the middle of the Bidassoa, on the Island of Pheasants, where a pavilion had been erected on the boundary-line between the two states.

On the 7th of November the peace of the Pyrenees was signed at last; it put an end to a war which had continued for twenty-three years, often internecine, always burdensome, and which had ruined the finances of the two countries.
France was the gainer of Artois and Roussillon, and of several places in Flanders, Hainault, and Luxembourg; and the peace of Westphalia was recognized by Spain, to whom France restored all that she held in Catalonia and in Franche-Comte.

Philip IV.

had refused to include Portugal in the treaty.