Kolno

Kolno developed from an early stronghold in the lands of the Masovian Piasts. First mentioned in 1222, it received town rights from Duke Janusz of Mazovia in 1425. Trade and crafts expanded in the sixteenth century, when Kolno was a royal town and county seat. Fire destroyed it during the Kościuszko Uprising in 1794. The next year's partition placed the town under Prussian rule; it later belonged to the Duchy of Warsaw and, after 1815, Congress Poland.