The Battle of Honnecourt was a battle of the Thirty Years' War fought on May 26, 1642. The Spanish, led by Francisco de Melo, were victorious over the French under Antoine III de Gramont, Comte de Guiche. In this battle the French Champagne army was all but annihilated. It lost three quarters of its men against a force double its size. 3200 men were killed and 3400 captured, including army commander Josias Rantzau, leaving Northern France wide open for the Spanish army. But the Spanish victory was not exploited because Francisco de Melo decided to be too careful.