Treaty of Lisbon (1667)

In the Treaty of Lisbon, signed on 31 March 1667, France concluded a ten-year offensive and defensive alliance against Spain with Portugal. France had already before supported Portugal against Spain in the Portuguese Restoration War, and in August 1666 French Maria Francisca of Savoy was married to the Portuguese king Afonso VI. As one consequence of the treaty, Spanish troops remained occupied in the Portuguese war, allowing France to start the War of Devolution in the Spanish Netherlands.