Valkenburg

Valkenburg was an imperial lordship around its castle east of the Maas. In 1337 Dirk IV of the house of Heinsberg ruled a territory contested by powerful neighbours.

After the male line ended in 1352, the lordship was sold to Jülich in 1355, made a county in 1357 and sold to Wenceslaus of Brabant in 1364. The 1661 Partage Treaty divided it between Spain and the Dutch Republic; France reunited both parts in 1795, ending the county.