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
Breda who had been their guest. Between 1746 and 1748 it was the site of the Congress of Breda, a series of talks between Britain and France aimed at bringing an end to the War of the Austrian Succession, which ultimately led to the signing of the Treaty of Aix-la-Chapelle. During the Second World War, the city was under German occupation. It was liberated following a successful outflanking manoeuvre planned and performed by forces of 1st Polish Armoured Division of General Maczek on 29 October 1944. Each year during Liberation Day festivities, Breda is visited by a large Polish contingent and