But the queen regent, anxious for the fate of her brother, employed her authority with the cardinal to stop the progress of the French conquests, and put an end to a quarrel which, being commenced by ambition, and attended with victory, was at last concluded with moderation.

The young monarch of France, though aspiring and warlike in his character, was at this time entirely occupied in the pleasures of love and gallantry, and had passively resigned the reins of empire into the hands of his politic minister.

And he remained an unconcerned spectator, while an opportunity for conquest was parted with, which he never was able, during the whole course of his active reign, fully to retrieve.
The ministers of the two crowns, Mazarine and Don Louis de Haro, met at the foot of the Pyrenees, in the Isle of Pheasants, a place which was supposed to belong to neither kingdom.

The negotiation being brought to an issue by frequent conferences between the ministers, the monarchs themselves agreed to a congress; and these two splendid courts appeared in their full lustre amidst those savage mountains.

Philip brought his daughter, Mary Therese, along with him; and giving her in marriage to his nephew Louis, endeavored to cement by this new tie the incompatible interests of the two monarchies.