Capture of Maastricht
Encyclopedia
The siege of Maastricht was fought between June 9, 1632 to August 22, 1632 where the Dutch commander Frederick Henry, Prince of Orange
Frederick Henry, Prince of Orange
Frederick Henry, or Frederik Hendrik in Dutch , was the sovereign Prince of Orange and stadtholder of Holland, Zeeland, Utrecht, Guelders, and Overijssel from 1625 to 1647.-Early life:...

 eventually captured the city from Spanish forces.

Background

Following upon his success of 1629, the capture of 's-Hertogenbosch
Siege of 's-Hertogenbosch
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.-Background:...

, the Dutch commander Frederick Henry, Prince of Orange
Frederick Henry, Prince of Orange
Frederick Henry, or Frederik Hendrik in Dutch , was the sovereign Prince of Orange and stadtholder of Holland, Zeeland, Utrecht, Guelders, and Overijssel from 1625 to 1647.-Early life:...

 marched up the river Maas
Maas
Maas is the name, in English borrowed from the Dutch language, of a river that is also named Meuse , in English borrowed from French language. The practical use in English may be influenced by the context at a lower or upper stream location....

 (Meuse) in 1632. The aim of the campaign was an ambitious one - the capture of the strong fortress of Maastricht, which was deep in Spanish-held territory. As Prince Henry marched south, the fortified places of Venlo
Venlo
Venlo is a municipality and a city in the southeastern Netherlands, next to the German border. It is situated in the province of Limburg.In 2001, the municipalities of Belfeld and Tegelen were merged into the municipality of Venlo. Tegelen was originally part of the Duchy of Jülich centuries ago,...

 and Roermond
Roermond
Roermond is a city, a municipality, and a diocese in the southeastern part of the Netherlands.The city of Roermond is a historically important town, on the lower Roer at the east bank of the Meuse river. It received city rights in 1231...

 capitulated with very little resistance thanks to the efforts of the Stadtholder of Upper Gelderland, Van der Bergh
Hendrik van den Bergh (count)
Hendrik, count van den Bergh , lord of Stevensweert, was a Dutch soldier in Spanish service during the Eighty Years' War and stadhouder of Spanish Upper Guelders.-Life:...

, who was sympathetic to the Dutch cause.

In 1632 Maastricht was ringed by tall medieval walls with a large number of towers. A few earthen bastions and demi-lunes had been constructed to strengthen the defences against artillery. A flooded ditch fed by water from the river protected the low-lying parts of the defences.

The town lies on both sides of the river Maas, which is particularly wide at Maastricht, so any attacker would have his forces split into two by the river. The garrison was strong, loyal to Spain and determined to resist the Dutch army. In addition to all this, there was a strong chance of a relief army being sent to Maastricht to raise the siege.

The Siege

Frederick Henry arrived before Maastricht on June 10 with 17,000 infantry and 4,000 cavalry. This included some veteran English and French troops, who were to play a significant role in the siege. He at once began to dig lines of circumvallation and contravallation. These were earthwork fortifications that ran all the way round the town and were built to protect the besiegers' camps against sorties made by the garrison or attacks from a force outside the town. There were various forts and redoubts along these lines protecting the high ground or vulnerable sections. Where the lines met the river above and below the town pontoon bridges were constructed, allowing the besiegers to transfer troops and material from one side of the river to the other. The strength of these lines was to prove critical to the outcome of the siege.

Two approach trenches were made on the town, one by the English troops and the other by the French. The English and French approaches drove towards sections of the defences to the north and south respectively of the western corner of the town.

The French approach targeted a section of medieval walls that was inadequately flanked by the works either side of it and the English approach aimed just to the south of a demi-lune in front of the walls. This siege took place long before the days of parallel trenches, so the works consisted of eccentric zig-zag trenches and self contained batteries that formed strong points.

In response to the investment of Maastricht, Isabella (the Governess of the Spanish Netherlands) recalled her troops from the Palatinate and sent Don Gonzalo Fernández and the Marquis of Santa Cruz
Álvaro de Bazán, 2nd Marquis of Santa Cruz
Álvaro de Bazán, 2nd Marquis of Santa Cruz, a.k.a. Álvaro de Bazán y Benavides, a.k.a. Alvaro II de Bazán, , was the son of Álvaro de Bazán, 1st Marquis of Santa Cruz....

 to relieve the town. The Spanish arrived near Maastricht on July 2 with 18,000 infantry and 6,000 cavalry, but though they outnumbered Frederick Henry's army, they was unwilling to attack the Dutch lines on account of their strength.

By the beginning of August Don Gonzalo de Córdoba was reinforced by the Imperial commander Pappenheim
Gottfried Heinrich Graf zu Pappenheim
Gottfried Heinrich Graf zu Pappenheim was field marshal of the Holy Roman Emperor in the Thirty Years' War.-Biography:...

, who brought 12,000 infantry and 4,000 cavalry. He resolved to attack the Dutch lines and force them to raise the siege. In a two-pronged attack, Don Gonzalo made a show of force on one side of the river and Pappenheim attacked the lines on the other side. This plan was well-conceived but in the end the strength of Frederick Henry's lines of contravallation and the superior morale of his troops (who were encouraged by his presence during the fighting) decided the day. Pappenheim was forced back with the loss of 1500 men. One of the casualties on the Dutch side was Robert de Vere, 19th Earl of Oxford
Robert de Vere, 19th Earl of Oxford
Robert de Vere, 19th Earl of Oxford was the second cousin of Henry de Vere, 18th Earl of Oxford. When Henry died some time between 2 and 9 June 1625, Robert emerged as the heir apparent to the earldom. Robert's claim was by his descent from John de Vere, 15th Earl of Oxford, but his title was not...

.

Having failed to raise the siege by force of arms, Don Gonzalez and Pappenheim decided to cut the Dutch supply lines and so starve them out of their strong position. However, the besiegers had sufficient supplies in their camps for another two months, so Frederick Henry simply ignored the relief forces' actions and pressed on with the siege.

The attackers were faced with a determined resistance from the garrison who made many sorties, particularly against the English approach, but in the end both the approaches reached the ditch. It was decided to mine the walls to form a breach and to this end two tunnels were dug beneath the ditch. A mine was detonated in one of them underneath the walls and a forlorn hope assaulted the breach on the night of August 21. This assault succeeded in gaining a lodgement in the walls and the garrison capitulated the following morning, fearing that the town would be sacked if the attackers broke in.

Aftermath

The garrison marched out with the honours of war on August 23 and Pappenheim and Don Gonzalo, who were still camped nearby but were running low on supplies, withdrew. Frederick Henry's feat in capturing Maastricht dismayed the Spanish, who made negotiations for peace, but their resolve was stiffened by the death of the Swedish Protestant hero Gustavus Adolfus at the Battle of Lützen
Battle of Lützen
Two major battles were fought at Lützen:*Battle of Lützen *Battle of Lützen...

on November 16.

Nevertheless, the capture of Maastricht was an important victory for the Dutch Republic. Although Venlo and Roermond were lost to the Spaniards in 1637 Maastricht remained, and remains to this day, in Dutch hands.
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