The Polish–Lithuanian fleet outnumbered the blockading Swedish squadron: the two Polish-Lithuanian squadrons numbered ten ships in all, but most were of small size, and only four Polish-Lithuanian ships were at full combat strength. The Polish–Lithuanian ships were commanded by Admiral Arend Dickmann in the "Ritter Sankt Georg". The Swedish squadron numbered six vessels, under Admiral Nils Stiernsköld in his flagship, "Tigern". The Polish–Lithuanian ships had a larger complement of marines on board than the Swedish ships, and this in large part determined the tactics employed in the battle.