HistoryData
Historical ConflictMoscow

Siege of Moscow

The 1439 siege of Moscow was a key episode in the First Russo-Kazan War, demonstrating Kazan's capacity to threaten the Muscovite heartland.

Duration & Scope

1439 ongoing

< 1 year

Key Facts

Duration of siege
10 days
Attacker
Ulugh Muhammad, Khan of Kazan
Defender
Yuri Patrikeevich (voivode)
City burned on retreat
Kolomna
Conflict
First Russo-Kazan War

Strategic Narrative Overview

Ulugh Muhammad's forces besieged Moscow for ten days, launching repeated assaults against the white-stone Kremlin. Grand Prince Vasily II abandoned the city, leaving defense to his brother-in-law Yuri Patrikeevich, who organized a competent resistance. The stone fortifications of the Kremlin proved resistant to Tatar attacks. Unable to breach the walls, the besieging force eventually withdrew without capturing the city.

01 / The Origins

Following the fragmentation of the Golden Horde, Ulugh Muhammad established the Kazan Khanate and sought to assert dominance over the Grand Duchy of Moscow. After defeating Muscovite forces at the Battle of Belyov, he advanced on Moscow itself. The broader struggle reflected the ongoing contest between the emerging Muscovite state and Tatar successor polities for control of the region's political and economic power.

03 / The Outcome

The Tatars retreated, plundering the surrounding countryside, taking many prisoners, and burning Kolomna on their way back. Vasily II returned from the Trans-Volga forests but delayed his entry into Moscow, temporarily delegating governance to his cousin Dmitry Yuryevich Krasny. The devastation of surrounding villages and the human toll left a stark impression recorded in contemporary chronicles.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Kazan Khanate
Key Commanders

Ulugh Muhammad.

Side B

1 belligerent

Grand Duchy of Moscow
Key Commanders

Yuri Patrikeevich, Vasily II.

Outcome
Tatar siege repulsed; Moscow not captured; Kazan forces withdrew, plundering surrounding areas and burning Kolomna

Kinetic Engagement Axis

Major engagements timeline (1439–present)Timeline of major military engagements plotted chronologically.1439present1437Battle of BelyovAllied1439Siege of MoscowSide B

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Moscow, RussiaMap of Moscow, RussiaMoscow, Russia