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Battle of Klushino, 1610: the day Poland marched into Moscow

Polish-Muscovite War · 1610 · Polish-Lithuanian Commonwealth vs Tsardom of Russia · ~6 min read · Updated September 2026

Winged hussars charging Russian and mercenary lines at Klushino

At a glance

Polish-Lithuanian CommonwealthStanisław Żółkiewski
vs
Tsardom of RussiaDmitry Shuisky
Date
1610
Location
Klushino, Smolensk region, Russia
Period
Polish-Muscovite War
Outcome
Decisive Commonwealth victory
By the numbers
SideStrengthLosses
Polish-Lithuanian Commonwealth~6,700~200-500 killed
Tsardom of Russia~15,000-35,000~5,000 killed or wounded

Russian total includes ~5,000 foreign mercenaries; its strength is uncertain.

Balance of forces

Polish-Lithuanian Commonwealth~6,700
Tsardom of Russia~15,000-35,000

Russian strength uncertain; includes foreign mercenaries.

Quick answer

The Polish-Lithuanian Commonwealth won a stunning victory at Klushino in 1610, when a small army under hetman Stanislaw Zolkiewski, spearheaded by the winged hussars, beat a far larger Russian and mercenary force. The win opened the road to Moscow and briefly put a Polish prince on the path to the Russian throne.

In the summer of 1610, deep in Russia's Time of Troubles, a small Polish-Lithuanian army met a much larger Russian and mercenary force at Klushino. Led by the hetman Stanisław Żółkiewski and spearheaded by the winged hussars, the outnumbered Poles won a stunning victory that opened the road to Moscow, and for a brief moment placed a Polish prince on the path to the Russian throne.

Russia's Time of Troubles

Russia was in chaos, its throne contested amid famine, pretenders and civil war, the period known as the Time of Troubles. The Polish king Sigismund III intervened, besieging Smolensk.1 A large Russian army, stiffened by foreign mercenaries hired with Swedish help2, marched to relieve the siege. To intercept it, the hetman Żółkiewski advanced with a far smaller force built around his cavalry.2

Outnumbered at Klushino

At Klushino the odds were heavily against the Poles, perhaps several to one, and much of their infantry and artillery had not arrived. What Żółkiewski had was the husaria, the winged hussars, the finest heavy cavalry in Europe. He chose to attack at once, before the enemy could deploy3 their advantage in numbers and guns.

Black and white engraving showing a bird's-eye plan of massed troop formations, tents and woods
A 17th-century copperplate engraving of the Battle of Klushino, drawn as a bird's-eye plan of the Polish-Lithuanian and Russian armies, their formations and camps. Public domain
The winged hussars broke an army many times their size, and briefly won the Kremlin.

The hussars charge

The hussars charged again and again into the Russian and mercenary lines, some companies charging eight or ten times over several hours. The foreign mercenaries, unpaid and unwilling, wavered and then defected or fled, and the Russian army disintegrated.1 Żółkiewski's outnumbered force had shattered a host many times its size, one of the great feats of the winged hussars.

A Pole toward the Kremlin

The victory was decisive. Moscow's boyars, their field army destroyed, agreed to accept the Polish prince Władysław as tsar4, and a Polish garrison entered the Kremlin3, one of the very few foreign forces ever to hold Moscow's fortress, and the last before Napoleon in 1812. But King Sigismund's ambitions and religious demands wrecked the deal5; the occupation soured, a Russian uprising drove the garrison out in 16121, and the chance slipped away.

History painting of a crowded royal hall where a captive tsar bows before the Polish king and senators
The Shuysky Tsars at the Warsaw Sejm by Jan Matejko, 1892. In October 1611 Hetman Żółkiewski presents the captive former tsar Vasili IV Shuysky and his brothers to King Sigismund III. Public domain

Frequently asked questions

When and where was the Battle of Klushino?

It was fought on 4 July 1610 at Klushino2 (Kłuszyn), in the Smolensk region of Russia on the road from Moscow, during the Polish-Muscovite War amid Russia's Time of Troubles.

Who commanded the Polish-Lithuanian army?

The Polish-Lithuanian forces were led by the hetman Stanisław Żółkiewski, with the winged hussars as the core of his army.

How were the Poles so outnumbered and still won?

Żółkiewski's cavalry attacked before the larger Russian-mercenary army could fully deploy, and repeated hussar charges broke their cohesion. The foreign mercenaries, unpaid, defected or fled, and the Russian army collapsed.

Did Poland really capture Moscow?

Yes. After Klushino a Polish garrison occupied the Moscow Kremlin, and the boyars offered the throne to the Polish prince Władysław. It is one of the rare times a foreign force has held the Kremlin; Napoleon's occupation in 1812 is the other famous case.

Why did Poland lose control of Moscow?

King Sigismund III's own ambitions and demands, including over religion, undermined the agreement. The occupation grew hated, and a Russian national uprising expelled the Polish garrison in 1612.

Sources and notes

Numbered notes in the text point to the works below.

  1. Chester S. L. Dunning, Russia's First Civil War: The Time of Troubles and the Founding of the Romanov Dynasty (Pennsylvania State University Press, 2001). ↩ a b c
  2. HistoryOfWar.org (J. Rickard), “Battle of Klushino, 4 July 1610” ↩ a b c
  3. Robert Szcześniak, Kłuszyn 1610 (Bellona (Historyczne Bitwy series), 2008). ↩ a b
  4. Muzeum Historii Polski (polishhistory.pl), “Stanisław Żółkiewski: Between Military Service and Private Interests” ↩
  5. Stanisław Żółkiewski, Początek i progres wojny moskiewskiej, the hetman's own account of the 1609-1611 campaign, Klushino and the Moscow treaty. ↩
  6. Wikipedia, “Battle of Klushino”
  7. Encyclopaedia Britannica, “Battle of Klushino”

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