Siege of Troitsky monastery
| Siege of the Trinity monastery | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Time of Troubles and the Polish–Muscovite Wars (1605–1618) | |||||||
Orthodox monks led by the chronicler Avraamy Palitsyn defended the Troitse-Sergiyeva Lavra against Polish troops from September 1609 to January 1611.  | |||||||
  | |||||||
| Belligerents | |||||||
| Polish–Lithuanian Commonwealth | Tsardom of Russia | ||||||
| Commanders and leaders | |||||||
| 
Jan Piotr Sapieha Aleksander Lisowski  | 
Grigory Dolgorukov Aleksey Golokhvastov Archimandrite Joasaph Since October 1609: Grigory Valuyev Davyd Zherebtsov  | ||||||
| Strength | |||||||
| 30,000 Polish interventionists and Cossacks | 2,400 | ||||||
| Casualties and losses | |||||||
| Unknown | Heavy, around 2,000 | ||||||
The siege of the Troitsky monastery (Russian: Троицкая осада) was an abortive attempt of the Polish–Lithuanian irregular army that acted in support of False Dmitry II to capture the Trinity Lavra of St. Sergius, north-east of Moscow. The siege lasted for 16 months, from 23 September 1608 until 12 January 1610.