Articles relating to the Franco-Spanish War (1635–1659), fought between France and Spain with the participation of a changing list of allies throughout the war. The first phase, beginning in May 1635 and ending with the 1648 Peace of Westphalia, is considered a related conflict of the Thirty Years' War. The second phase continued until 1659, when France and Spain agreed to peace terms in the Treaty of the Pyrenees.