Swedish - PLC war broke out after Sigismund III Vasa annexed Estonia (he was both Swedish and Polish King). Sieges and pillaging villages was part of every war back then and it was Sweden who invaded lol. They also spreaded conflict to lands that was belonging for centuries to PLC, Lithuania or theirs vassals. 20 years later Swedes invaded again and slaughtered 1/3 of entire population of the kingdom!

Do you even know what kingdom is? There has never been such thing as a "Baltic kingdoms" and the tribes who got eradicated from the world (Prussians and Yotvingians) were conquered by german Teutonic Knights! I will only briefly mention Polabians and Pomeranians slaughtered and germanised by other germanic duchies.