Jan II the Mad also known as the Bad, the Wild or the Cruel, was a Duke of Żagań-Przewóz since 1439, from 1449 Duke of Przewóz, during 1461–1468 and briefly in 1472 Duke of Żagań and during 1476–1488

Przewóz is a village in Żary County, Lubusz Voivodeship, in western Poland. It is located in the historic Lower Silesia region on the eastern shore of the Lusatian Neisse river, on the border with Ger