They were equally matched by the Swedes with 3,000 men under Carl Gustav Mörner stationed inside the city,[2] although due to intense sickness it was realistically closer to 2,500.

The Dala regiment alone had only 740 men prior to the battle in comparison to its original strength of 1,200.

[1] On the night of April 16, a Polish-Lithuanian unit of about 3,000 people under the command of Ludwik Pociej attacked Vilnius[5] The attack was repulsed and the Polish-Lithuanian army had to withdraw with a loss of 100 men killed and two cannons lost while the Swedes lost 50 men killed in the action.

[4] the battle is known for a legend, that near the Gate of Dawn the Virgin Mary came to the people's rescue and the Polish–Lithuanian forces counterattacked killing four Swedish soldiers having no losses of their own.

[6] The city remained in Swedish control until Mörner left it with his army in order to reinforce Charles XII in his battle against Augustus.