In 1795 Sławków briefly belonged to New Silesia, and in 1806 was annexed by the Duchy of Warsaw (since 1815 Russian-controlled Congress Kingdom). In the mid-19th century first industrial enterprises were established here, and the town was connected with other locations in the area by a paved road.
Sławków changed hands briefly in 1795 when it was part of New Silesia, before being absorbed by the Duchy of Warsaw in 1806. Later, from 1815, it came under Russian control as part of the Congress Kingdom. The town began to develop industrially in the mid-19th century and became linked to other areas through a road.