Nur

Nur stands on the Bug, where a market settlement grew into the centre of its own district in eastern Mazovia. Duke Janusz I granted town rights in the early fifteenth century, and Bolesław IV confirmed them in 1434. His privilege allowed a cloth-finishing house, scales and baths, while freeing townsmen from tolls within the duchy.

Grain from Nur travelled downriver toward Gdańsk. Granaries stood on the riverbank, and eight mills worked from boats anchored together on the Bug. Although its houses were largely wooden, writers at the turn of the seventeenth century described a populous and prosperous town with a considerable river grain trade. Nur later lost its position as the district's principal seat when the land courts moved to Ostrów.