One night in early August, the Russian bombardment caused a fire in the grain reserves of the stronghold.
The Russians took advantage by immediately storming the fortifications and after a two hour fight, secured a victory.
The commandant of the fort, Johan Willichman, took the Swedish flag with him and jumped into the fire.
The rest of the defenders as well as all males present in the stronghold were slaughtered.
[2] After capturing Dyneburg (Dünaburg, Daugavpils), Tsar Alexei Mikhailovich ordered the building of an Eastern Orthodox Church and the renaming of the city as Borisoglebsk.