Jan Dekert
Jan Dekert (1738–1790) was one of the most prominent merchants in Warsaw and a political activist advocating more rights for the burghers in the Polish–Lithuanian Commonwealth, while opposing Jewish competitors. As the representative of Warsaw, he was elected member of the Sejms of 1784 and 1786, and the Great Sejm of 1788–1892. He was a mayor of Warsaw from 1789 to 1790, in which capacity he organized the Black Procession, a demonstration of burghers who delivered a petition to the king on 2 December 1789. This was a major step towards the adoption of the Free Royal Cities Act enfranchising burghers, one of the reforms of the Great Sejm, which was eventually incorporated into the Constitution of May 3, 1791. (Full article...)