|Siege of 's-Hertogenbosch|
|Part of the Eighty Years' War|
|File:The Siege of Hertogenbosch.JPG|
The siege of 's-Hertogenbosch by Pauwels van Hillegaert 1635. Oil on Canvas.
|Commanders and leaders|
3000 infantry4000 armed civilians
24000 infantry 4000 cavalry116 cannons
|Casualties and losses|
1200 killed1200 diseased and injured
The Siege of 's-Hertogenbosch was in 1629 an action of the Eighty Years' War in which a Dutch Republican army captured the city of 's-Hertogenbosch which had been loyal to the King of Spain since 1579 and thus part of the Spanish Netherlands.
The Twelve Years' Truce ended in 1621. Stadtholder Maurice of Orange had in the meantime played a part in instigating the Thirty Years' War in Germany. The Habsburgs tried to punish the rebellious Dutch Republic by cutting it off from its hinterland by a land blockade. 's-Hertogenbosch was the main fortress in this perimeter and enormous sums of money were poured into the improvement of its defences. As the ground surrounding the city was a marsh, the city was generally deemed to be impregnable, as the water-saturated soil seemed to make an application of current siege methods impossible; trench-digging and undermining were apparently out of the question. Maurice had failed twice in taking the city.
The blockade caused an economic crisis for the Republic and it reacted by trying to harm the enemy in its colonies. In 1628 one of the many schemes undertaken met with spectacular success when Admiral Piet Hein of the Dutch West India Company captured the Spanish treasure fleet. The vastly improved financial situation of the Republic allowed for a major counter-stroke and Stadtholder Frederick Henry decided to break the Habsburg morale by conquering their main stronghold in the Netherlands. This came very unexpectedly; most had predicted the goal of his campaign would be Breda, retaken by the Habsburgs in 1625.
Advancing from Grave he laid siege to the city in April 1629, with an army of 24,000 infantry and 4,000 cavalry. He also had hired 4,000 peasants and these would cause a tactical surprise. Frederick Henry diverted the two main streams feeding the swamps (the Dommel and the Aa) around the city by means of a double forty kilometre dike, in the form of a giant square, completely enclosing the fortress. Thus having created a polder, he began to drain it with (mainly horse) mills. After the soil had sufficiently dried out his trenches could approach the city walls. Noble visitors from all over Europe visited the siege to admire the novel and spectacular method.
Reaction from Habsburg
Of course the Habsburg authorities didn't remain idle while their main bulwark was being reduced. They sent a large relief army under command of Frederick Henry's Catholic cousin Hendrik van den Bergh, reaching the city in July. Van den Bergh quickly found out that his cousin's circumvallation, successfully tested at the siege of Grol in 1627, was too strong to breach. He tried to lure Frederick Henry away by invading the Republic through the Veluwe, capturing Amersfoort on 14 August. When his supply base at Wesel was taken, he had to withdraw.
Meanwhile the Protestant forces dug themselves ever closer to the city along the southern road from the direction of Vught, continuously bombarding the defences. During the siege 28,517 cannonballs were fired. On 18 July the large Fortress Isabella fell, followed the next day by Fort Anthony. Despite repeated sallies by the 2,500 men of the garrison, the attackers slowly worked their way to the southern city gate. There they undermined Bastion Vught; in the early hours of 11 September a massive explosion caused a large breach in the ramparts. On 14 September its military governor Anthonie Schetz surrendered the city.
Bishop Michael Ophovius tried to plead with Frederick Henry for religious tolerance, but though the stadtholder himself would gladly have granted religious freedom to the Catholics, as he tried to gain popularity in the Spanish Netherlands in the hope support for the rebellion would grow, due to vehement Calvinist resistance it had already been decided to be as strict in this respect as in the rest of the Republic; only nunneries could remain until the last nun of those present in 1629 had died.
Fall of Den Bosch
The fall of 's-Hertogenbosch was an enormous blow to Habsburg prestige. Their position in the North would soon crumble and Frederick Henry, encouraged by the success, would start a series of other sieges, assisted by his cousin Van den Bergh, who changed sides after being accused of treason.
Although its population would remain predominantly Catholic, 's-Hertogenbosch would stay firmly in the hands of the Republic as part of the Generality Lands until French revolutionary forces captured it in 1794; only then would the Batavian Republic grant equality to Catholics. The former Duchy of Brabant remains divided to this day between Belgium (Brabant) and the Netherlands (North Brabant).
- Siege of 's-Hertogenbosch 1629 on the Google Books Library Project
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