The first permanent settlement in the area
of today's Wadowice was founded in the late 10th century or early 11th century.
According to a local legend, the town was founded by certain Wad or Wład, a
short form for the Slavic name of Ladislaus. The town was first mentioned as
Wadowicze in St. Peter penny register in years 1325–1327. In 1327 it is also
mentioned in a fief registry sent from prince John I Scholastyk of Oświęcim to
Bohemian king John I, Count of Luxemburg. At this time it was a trading
settlement belonging to the Dukes of Silesia of the Piast Dynasty, and
according to some historians