Cambrésis was not annexed by the French kings until the 1678 Peace of Nijmegen after a siege in 1677, becoming part of the French province Flandre and Hainaut. The count-bishops continued to refer to themselves as princes of the Holy Roman Empire until the French Revolution. On 2 November 1789, during the French Revolution, all church property was nationalised, which meant the end of Cambrésis.