Siege of Breda (1637) when word came that the Dutch had suddenly invested the city of Breda with a besieging army of 18,000. Breda was the capital city of the baronial fief that had once been the crown jewel in the Dutch estates of the Nassau family in the Habsburg Netherlands before the war started. Frederick Henry had therefore a personal interest in recapturing the city and its surroundings. The siege was preceded by an attempt to surprise the garrison on 21 July 1637 by Dutch cavalry under Henry Casimir I of Nassau-Dietz. However, the gates were closed in time and the Dutch skirmishers
Siege of Breda (1637) on 20 June 1638 and defeated in the only pitched battle of the second part of the Eighty Years' War at Kallo. Siege of Breda (1637) The Fifth Siege of Breda (21 July – 11 October 1637) was an important siege in the Eighty Years' War in which stadtholder Frederick Henry, Prince of Orange retook the city of Breda, which had last changed hands in 1625 when the Spanish general Ambrogio Spinola conquered it for the Spanish Habsburgs. Hereafter, the city would remain in the hands of the Dutch Republic until the end of the war. In 1635 France and