Prussian invasion of the Dutch Republic
- When
- 1787
- Where
- States of Holland; Zyfflich to Nijmegen; Utrecht and fortress cities; Fortress in the Dutch Republic; Wesel; The Hague
- Episodes
- 5
On 13 September 1787 Prussian troops under the Duke of Brunswick invaded the Dutch Republic, marching from Zyfflich to Nijmegen after an ultimatum to the States of Holland expired. The campaign disempowered the Patriot movement, disarmed the Free Corps, and reinstated William V as hereditary stadtholder; the legacy row's claim that 40,000 Patriots went into exile in France is not supported by the supplied passages.
Episodes
- Prussian Ultimatum
Thulemeyer demanded punishment for offenses against the Princess; the States of Holland, on van Zeebergh's counsel, did not reply.
- Invasion Begins: March to Nijmegen
On 13 September 1787 Prussian troops marched from Zyfflich to Nijmegen, joining Dutch States Army garrison troops under the stadtholder.
- Campaign Aims and Expected Resistance
The campaign aimed to disempower Patriots and disarm the Free Corps; resistance was expected at Utrecht, Rhine fortifications, and fortress cities.
- Capitulation and Imprisonment at Wesel
A Patriot commander capitulated after a token Prussian bombardment; he and his troops were taken to Wesel as prisoners of war, where he died in December 1787.
- Stadtholder Returns to The Hague
On 20 September 1787 William V and his wife arrived in The Hague, meeting an Orangist cabal including Sir James Harris.
Background and detail
Background. The invasion targeted the democratic Patriot movement and its Free Corps. Prussia had earlier offered good offices, sending Johann Eustach von Görtz in Fall 1786 to mediate between the stadtholder and the aristocratic Patriots, but diplomacy gave way to coercion after France accepted a request for mediation on 18 July 1787.
Diplomatic Crisis and Ultimatum. Prussian ambassador Thulemeyer issued an ultimatum on 9 September 1787 demanding that the States of Holland punish those culpable of offenses against the Princess. On pensionary Adriaan van Zeebergh's counsel the States did not reply, and when the ultimatum expired the Prussians marched.
French Weakness. France's response was hampered by internal weakness: Vérac's position had weakened after the deaths of Vergennes and the fall of Calonne in early 1787, and France was without a minister for War during the crucial month of September 1787. A French camp at Givet, garrisoned with 15,000 men, did exist as a response to Prussian movements toward Wesel.
Aftermath. The campaign achieved its aims of disempowering the Patriots and disarming the Free Corps, and William V was reinstated as hereditary stadtholder. The stadtholder and his wife arrived in The Hague on Thursday, 20 September 1787. The legacy claim of 40,000 exiles to France is not corroborated by the supplied passages.
People involved
- Charles William Ferdinand, Duke of Brunswick · Prussian commander of the invasion
- William V of Orange · Stadtholder reinstated as hereditary stadtholder
- Thulemeyer · Prussian ambassador who issued the ultimatum
- Adriaan van Zeebergh · Pensionary who counseled the States of Holland not to reply
Sources
- Prussian invasion of Holland Wikipedia, revision of 2026-08-22
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.