3 min

1625 to 1629

Thirty Years War: The Danish Phase

by nonoumasy ▲⚬▲⚬

In this part of the Thirty Years War, the Protestant Danes were challenged by the Catholic Imperial armies. Their success led to major Catholic victories and put the Catholic Habsburg rulers of Spain and Austria at the height of their power. After this Catholic victory, Ferdinand declared an “Edict of Restitution” which took back lands for the Catholic Church that had previously been overtaken by Protestants. Ferdinand also limited worship in the HRE to only two groups: Catholics and Lutherans.

  Table of Contents / Timeline

Christian IV of Denmark


Danes get involved

1625 Jan 1 -


After the Bohemian Revolt was suppressed by Ferdinand II, the Danish king, Christian IV, fearing that recent Catholic successes threatened his sovereignty as a Protestant nation, led troops against Ferdinand.

More details


England and United Provinces(Dutch) finance the Danes

1625 Dec 1 -

England and United Provinces

England and the United Provinces gave a subsidy to aid the opponents of the Hapsburgs, and England sent a few thousand soldiers.


Battle of the Dessau Bridge

1626 Apr 25 -

Dessau, Germany

General Wallenstein defeated Count Mansfeld. Wallenstein had 20,000 men to Mansfeld’s 12,000, although initially Mansfeld was under the impression he had more men. Because of this misconception Mansfeld attacked across the bridge over the Elbe river. He realised his mistake as the Catholic masses were brought to bear. Trapped against the river Mansfeld lost 4,000 dead, wounded, or captured.

More details


Battle of Lutter-am-Bamberg

1626 Aug 27 -

Lutter am Barenberge, German

A Catholic League army under Count Tilly defeated the forces of Christian IV of Denmark at Lutter am Barenberge in the Imperial Circle Estate of Lower Saxony. Both armies had 20,000 men. On three occasions the imperial infantry broke through the Danish line only to be repulsed by a cavalry counter-attack. However when the Catholics captured the entire Danish artillery the Danes panicked and retreated towards the town of Stade. The Danish losses were approximately 4,000 dead, 2,000 wounded, and 2,500 prisoners.

More details


Siege of Stralsund

1628 Jul 5 -

Stralsung, Germany

The Siege of Stralsund was a siege laid on Stralsund by Albrecht von Wallenstein's Imperial Army during the Thirty Years' War, from May to 4 August 1628. Stralsund was aided by Denmark and Sweden, with considerable Scottish participation. The lifting of the siege ended Wallenstein's series of victories, and contributed to his downfall. The Swedish garrison in Stralsund was the first on German soil in history. The battle marked the de facto entrance of Sweden into the war.

More details


Battle of Wolgast

1628 Aug 12 -

Wolfgast, Germany

Danish forces of Christian IV of Denmark-Norway had made landfall on Usedom and the adjacent mainland, and expelled the imperial occupation forces. An Imperial army commanded by Albrecht von Wallenstein left besieged Stralsund to confront Christian IV. Ultimately, the Danish forces were defeated. Christian IV and a fraction of his landing force were able to escape by ship.

More details

Wallenstein's camp


Treaty of Lübeck

1629 May 22 -

Lübeck, Germany

In the Treaty of Lübeck Christian IV retained Denmark but had to stop his support for the Protestant German states. This gave the Catholic powers the opportunity to take more Protestant land during the next two years. It restored to Denmark-Norway its pre-war territory at the cost of final disengagement from imperial affairs.

More details



1629 Dec 1 -


Key Findings:

  • Catholics still on top
  • Ferdinand issued the Edict of Restitution, which ordered the return of Catholic lands that had been taken over by Protestants since the Peace of Augsburg


  • Lockhart, Paul D (2007). Denmark, 1513–1660: the rise and decline of a Renaissance monarchy. Oxford University Press. ISBN 978-0-19-927121-4.
  • Murdoch, Steve (2000). Britain, Denmark-Norway and the House of Stuart 1603–1660. Tuckwell. ISBN 978-1862321823.

The End

...or is it?

🐰 Stay in wonderland