Jędrzej of Golczew, castellan of Płock, established the town at the end of the 14th century. Duke Siemowit IV of Masovia granted the city rights charter in 1406 and in 1869, during Russia's occupation, the town lost its city rights until 1994. Bieżuń was a private town, administratively located in the Płock Voivodeship in the Greater Poland Province of the Polish Crown.
Jędrzej of Golczew, castellan of Płock, founded the town in the late 14th century. Duke Siemowit IV of Masovia granted the city's municipal charter in 1406 and in 1869, during Russia's occupation, the town lost its municipal rights until 1994. Bieżuń was a private town, administratively situated in the Płock Voivodeship in the Greater Poland Province of the Polish Crown.