Siege of Schenkenschans

Capture by the Spanish Army

In 1635 the Dutch Republic concluded an alliance with France with the objective of taking on the Spanish Army of Flanders from two sides, in the hope of breaking the strategic stalemate in the Eighty Years' War and dividing up the Spanish Netherlands between the two partners in the alliance. The Dutch and French invaded from two sides in June 1635, and joined forces in the valley of the Meuse in July, while the Spanish field army under the Cardinal-Infante fell back to cover behind the well prepared defences of Brussels instead of risking envelopment by the massive invading Franco-Dutch force, turning the campaign into one of attrition. The invading armies (60,000 strong) captured a few smaller towns before investing Leuven. But this siege ended in a fiasco because of bad logistics and organization, and because the French army was decimated by the plague. This failure allowed the Spanish forces to take the initiative and soon the invaders were forced into a headlong retreat.

The Cardinal-Infante forced the weakened invading Franco–Dutch armies towards the Dutch border. From there, he made a north-easterly thrust to the Rhine in the direction of Cleves. Despite desperate efforts, the Dutch and their allies were not able to prevent Spanish forces from taking the towns of Limbourg, Gennep, Diest, and Goch around the south and east of the Republic. A party of 500 German mercenaries under Lt.-Col. Eyndhouts, roaming on the Cardinal-Infrante's left flank, managed to surprise the unprepared fortress of Schenkenschans that at the time had a garrison of only 120, on the night of 27/28 July. The garrison were massacred. and the Cardinal-Infante had a large garrison placed in the fortress under the command of Eyndhouts (who died in action in the fort on November 30).

Siege

The Dutch brought up reinforcements right away, but could not prevent the occupation by a Spanish army of 20,000 of the Duchy of Cleves during August and September. This army threatened an invasion of the Dutch heartland and it was therefore essential that this threat be countered. Frederick Henry personally started the siege of Schenkenschans within days of its fall, but soon transferred command to his cousin John Maurice, Prince of Nassau-Siegen. The besieging army had a strength at its peak of 30,000 men, while the size of the garrison was 1,500 men.

The terrain made the siege especially difficult. The fortress was built on an island between the two rivers that functioned as a moat. An escalade would therefore have been difficult, as the garrison was unlikely to let itself be surprised. Mining would have been impossible because of the water-logged terrain, and for the same reason the fortress could not be closely invested with entrenchments. However, the Dutch could and did use the terrain to protect the besieging army from Spanish efforts at relief by inundations. In any case, there seemed to be no option but to starve out the well-provisioned garrison and meanwhile to attempt to pound the fortress to rubble with siege artillery. This the Dutch did with alacrity. The fortress was bombarded from all sides, even by river gun-boats on the Waal.

The effects of such bombardments were terrible. According to an eye-witness, during one particular bombardment,

One could hear the screaming and crying in the sconce while the air was filled with smoke and flying debris for two hours on end.

Nevertheless, the garrison held out for nine months despite the terrible circumstances and the high casualties. When finally John Maurice negotiated an honorable surrender with the new governor of the fortress, Gomar de Fourdin, only 600 survivors walked out on 30 April 1636.

Aftermath

The population of the Dutch Republic, reeling from the recent defeats, was elated by the surrender, whereas the Spanish chief minister Olivares fell victim to despondency at the loss of such a promising gain. He wrote to the Cardinal-Infante:

...pues veo, Señor, que se ha perdido la mayor joya que el rey nuestro Señor tenia en esos estados para poder acomodar sus cosas con gloria ... grande golpe, Señor, para el rey nuestro Señor, grande para toda España .

Though there may not have been a direct link with the loss of Schenkenschans for Spain, the Cardinal-Infante decided to change the focus of the Spanish offensive to France in the summer of 1636. To everybody's surprise this led to a collapse of French defenses and to a deep incursion into France, as far as Corbie.

The fortress of Schenkenschans once more played an important role in Dutch history thirty six years later when it fell to the invading French without a shot being fired during the Rampjaar on 21 June 1672 in the Franco-Dutch War. The governor of the fortress at the time was the 22-year-old son of a Nijmegen regent by the name of Ten Hoven or Ten Haef, who evidently was in over his head and surrendered the fortress in exchange for a chance to march the garrison off to Friesland By that time the rivers near the fortress had become so shallow that the French army could easily ford them. The fall of the fortress made the subsequent French invasion of the Republic much easier.