28 November

The naval Battle of Oliwa, took place on this day in 1627 during the Polish-Swedish War.

It occurred slightly north of the port of Danzig (Gdańsk) near the village of Oliva (Oliwa). It was the largest naval battle fought by the Polish–Lithuanian Commonwealth Navy, and resulted in the defeat of a small Swedish squadron. The Poles slipped out of the Danzig harbour and captured the Swedish flagship and sank another vessel.