Siege of Groenlo (1606)

{{Short description|1606 siege}}

{{Use dmy dates|date=February 2025}}

{{Infobox military conflict

|conflict=Siege of Groenlo (1606)

|image=Siege of Groenlo November 9th 1606 Snayers.jpg

|image_size=300px

|caption=Groenlo relieved by Spinola, November 1606.
Maurice's army (right) sounds the retreat.
(In a painting commissioned from Peeter Snayers by Spinola).

|partof=Spinola's campaign of 1605-1606 during the Dutch Revolt

|date=3–14 August 1606 (Spinola)
30 October – 9 November 1606 (Maurice)

|place=Groenlo, Gelderland
(present-day the Netherlands)

|result=1st Siege: Spanish victory
2nd Siege: Spanish victory

|combatant1={{flagicon|Spain|1506}} Spain

|combatant2={{flagicon|Dutch Republic}} United Provinces

|commander1={{flagicon|Spain|1506}} Ambrosio Spinola

|commander2={{flagicon|Dutch Republic}} Maurice of Nassau
{{flagicon|Dutch Republic}} Diederik van Dort

|strength1= 15,000

|strength2= 1,300–1,400

|casualties1=

|casualties2=

|}}

{{Campaignbox Dutch Revolt}}

The siege of Groenlo was a siege of Groenlo or Grol in 1606 during the Dutch Revolt. It lasted from 3 to 14 August 1606 and ended in the city being captured from the United Provinces by a Spanish Empire force under Ambrosio Spinola. A few months later Prince Maurice attempted to retake the city but failed due to poor planning and an intervention by Spinola. Groenlo would remain in Spanish hands until another siege in 1627.