In 1590 the Dutch army reconquered Fort Crèvecoeur. On 29 June 1593 a Spanish army under Count Mansfeld appeared before Crëvecoeur. Somewhat before that, Floris van Brederode, lord of Cloetingen, had marched into the fort with reinforcements. Now the Dutch built a dam across the Dieze, causing all the surrounding lands to flood, and Mansfeld broke off the siege. 1594 started with the Dutch Republic attempting to surprise 's-Hertogenbosch, The attempt failed, but the subsequent Siege of Groningen (1594) succeeded.