Ян II Казимир
Wejherowo was founded in 1643 as "Wola Wejherowska" (literally "Wejher's Wola"), by the voivode of the Malbork Voivodeship, and Polish noble, Jakub Wejher. It was translated in the colloquial German of the time as "Weihersfrey" or "Veyersfrey". According to the founder's will, the dwellers of the new settlement were to possess the same city rights as other towns in the region, hence the place granted Kulm law. The town's privileges, received in 1655, were confirmed by King John II Casimir Vasa of Poland.