HistoryData
Historical ConflictMalbork Castle

Siege of Marienburg

The failed siege allowed the Teutonic Knights to survive as a political entity, limiting Polish-Lithuanian gains after Grunwald to minor territorial concessions.

Duration & Scope

1410 ongoing

< 1 year

Key Facts

Duration
26 July – 19 September 1410 (approx. 2 months)
Result
Siege repulsed; Teutonic Knights survived
Peace treaty
Peace of Thorn (1411)
Key defender
Heinrich von Plauen
Preceded by
Battle of Grunwald (Tannenberg), 1410

Strategic Narrative Overview

The allied Polish-Lithuanian army began the siege on 26 July 1410, surrounding the formidable Malbork Castle. Heinrich von Plauen organised the defence with determination, rallying the remaining Knights and resisting all assaults. Supply difficulties, disease, and the castle's strong fortifications hampered the besiegers. After approximately two months of fruitless effort, the allied forces withdrew on 19 September 1410 without taking the castle.

01 / The Origins

Following their crushing defeat at the Battle of Grunwald (Tannenberg) in July 1410, the Teutonic Knights were severely weakened and vulnerable. The victorious Polish-Lithuanian forces, commanded by King Władysław II Jagiełło and Grand Duke Vytautas, sought to exploit the victory by capturing Marienburg, the fortified capital of the Teutonic monastic state, aiming to extinguish the Knights' power in Prussia entirely.

03 / The Outcome

The failed siege left the Teutonic Order intact as a political force. Subsequent negotiations produced the Peace of Thorn in 1411, under which the Knights conceded only minor territorial losses. Heinrich von Plauen was credited with saving the Order from annihilation and was elected Grand Master. The Order's survival prolonged conflict in the region for decades.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Kingdom of Poland and Grand Duchy of Lithuania
Key Commanders

Władysław II Jagiełło, Vytautas.

Side B

1 belligerent

Teutonic Knights (Monastic State)
Key Commanders

Heinrich von Plauen.

Outcome
Siege repulsed; Teutonic Knights retained Marienburg; Peace of Thorn (1411) imposed only minor territorial losses on the Order.

Kinetic Engagement Axis

Major engagements timeline (1410–present)Timeline of major military engagements plotted chronologically.1410present1410Siege of Marienb…Side B

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Malbork, PolandMap of Malbork, PolandMalbork, Poland