Circumvallatielinie West

Circumvallatielinie West

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The Siege of Grol in 1627 was a battle between the Army of the Dutch Republic commanded by Frederick Henry, Prince of Orange and the Spanish controlled fortified city of Grol (known as Groenlo in present day), during the Eighty Years War in 1627. The Spanish army led by Hendrik van den Bergh came to relieve Grol, but it came too late. The siege lasted from 20 July until 19 August 1627, resulting in the surrender of the city to the army of the Dutch Republic. During the siege, a 16 kilometer long circumvallation line was made around Grol in order to prevent the enemy from leaving and to prevent liberation of the city from the outside. Ambrosio Spinola had used a similar technique during the Siege of Breda (1624), and after the successful siege of Grol Frederic-Henry would later use it in other sieges in the Netherlands, such as at the Siege of 's-Hertogenbosch. The success at Grol provided the first serious victory on land for the Republic after the Twelve Years' Truce. #Groenlo_Grol_1627
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