Battle of Novhorod-Siverskyi
The Battle of Novgorod-Seversky was the first major battle of False Dmitry I against Boris Godunov. == Prelude == False Dmitry I crossed the border of the Tsardom of Russia in winter of 1604 commanding a mercenary army of Polish-Lithuanian noblemen.
Source: Wikipedia — Battle of Novhorod-Siverskyi (CC BY-SA 4.0)