The Siege of Venlo was an important siege in the Eighty Years' War that lasted from 20 to 25 August, 1637. The Cardinal-Infante Ferdinand of Austria, Governor of the Spanish Netherlands, retook the city of Venlo from the United Provinces, which had taken control of it in 1632 during the offensive of Frederick Henry, Prince of Orange against Maastricht. Venlo remained in Spanish hands for the rest of the war, balancing along with Roermond, surrendered to the Cardinal-Infante a week later, the loss of Breda to the Dutch in October of the same year.