On 18 May 1656 the French troops, commanded by Turenne began to close in and surround the fortified town of Valenciennes which was defended by a Spanish garrison under the command of Francisco de Meneses. The well organised siege began to exhaust the defenders. Towards the end of June, Don Juan José de Austria, the governor of the Spanish Netherlands, took the decision to come to the aid of Valenciennes as its situation was becoming unsustainable. The French army, consisting of 115 cavalry divisions and 31 of infantry, was divided into a further 2 divisions on each side of the river Scheldt, one of which was under the command of Turenne and the other, under Henri de La Ferté-Senneterre, with the communication problems that this caused.
The siege
On the night of 15 July just as the fortress was about to surrender, the Spanish army arrived consisting of 81 squadrons of cavalry and 27 of infantry. Don Juan's army dug in about a league from the enemy, preparing to launch an offensive. Four attacks were organised:
The new army which would be led by the Count of Marsin.
Condé came down on Marshal's section with such vigour it surprised and destroyed the French resistance. Don Juan José de Austria stood out due to his brave action, unleashing his might on the French quarters. Turenne then repelled a false attack from the Spanish on his quarters, and went to the aid of Maréchal La Ferté but it was in vain, so he felt obliged to retreat as far as Quesnoy, where he reorganised his forces. The Spanish captured 400 French officers including Maréchal La Ferté, lieutenant of Turenne and a further 4,000 soldiers including their belongings and provisions, including an assault train consisting of 50 cannons and all the correspondence of the French command with their court, which allowed the extent of their forces to be known. As for La Ferté's division only 2,000 managed to escape after tossing their arms and making a run for it in total disarray.
Aftermath
The victory at Valenciennes lifted the French siege and contributed greatly to lifting the morale of the Spanish tercios, producing "one of those thunderous achievements that Spain came up with in better days." However, Turenne had the presence of mind not to allow the French forces to be intimidated by the defeat. His rapid regrouping and redeployment of his forces prevented the Spanish from gaining a decisive advantage on the front. Philip IV of Spain ordered a gold medal to be printed to commemorate the victory and he had it sent to Condé together with a saber, also made of gold. For the Spanish, the great victory at Valenciennes proved counterproductive. Emboldened by the success, the Habsburg court at Madrid refused to compromise with French demands but Spanish forces were stretched to their limit despite the great victory. The war dragged on until 1659, when the Spanish government finally signed the Treaty of the Pyrenees, which, with the loss of Dunkirk and nearby areas, was less favourable than would have been possible after the battle of Valenciennes.
