[5][6][7][8] From 1527, owners of the lordship mentioned include: the nobleman Jakob Saszowski of Gieraltowic and Wilamowic,[9] and in 1533: the nobleman and chief judge of Oświęcim Nicolaus Saszowski of Gieraltowic (aka Gierałtowski),[7] in 1633: Christopher Korycinski (castellan of Wojnicz), between 1707 and 1719 Władysław Morsztyn and his wife Helena née Kalinowska; to the end of the 19th century the owner Psarski sold his land and rights to residents, and from there on Wilamowice became a small rural town.

[10] It was not, however, until 1564, at the General sejm, that King Sigismund II Augustus issued privileges of incorporation, recognizing the Duchy of Oświęcim as part of the Polish Crown into the Silesian County of the Kraków Voivodeship.

After World War I and the dissolution of Austro-Hungarian monarchy, it became part of the newly independent nation of the Second Polish Republic.

Although the language ban was lifted in 1956 during the "Polish October" revolution, attempts continued to suppress the Wymysorys dialect from public life.

[2] The status of the Wilamowice ethnolect is complex, because according to the traditional classification it is broadly understood as an East Central dialect of High German.