The Karnkowski Statutes of 1570 gave Polish kings the control over maritime commerce, but not even Stephen Báthory, who resorted to an armed intervention against the city, was able to enforce them.
Karnkowski statuudid aastast 1570 andsid Poola kuningatele kontrolli merekaubanduse üle, kuid isegi Stefan Batory, kes kasutas linna vastu relvastatud sekkumist, ei suutnud neid jõustada.