After more than 500 years of belonging to the Duchy of Luxembourg, our region became part of the French Republic, born following the Revolution of 1789.
With the invasion of French troops in 1795, the social and administrative order in which men had lived for centuries (Ancien Régime), subject to their lord, was dismantled.
According to the motto “Liberty, Equality, Fraternity” the citizen was born, called to participate in public management, particularly local. The medieval feudal order, with its class system (nobility, clergy, workers and peasants), its laws and rules transmitted orally, its annual open-air assemblies during which these "beliefs" and its supreme judgments were proclaimed, now belonged to the pass. The new masters set up an administrative structure which, starting from the central state, spread through the departments to the smallest entity, the commune. Our current municipalities are the heirs.
After Napoleon's defeat at Waterloo, our region was, following the Congress of Vienna in 1815, attached to the Kingdom of Prussia. While the departments were abolished, replaced by circles (Landkreise), the municipalities kept their unity and were precisely surveyed between 1816 and 1828, then mapped in the Prussian land register.
(Urhandriss).
The small schist border marker,
p man dates from this bach and
Crombach belonged in the Middle Ages partly to the ban of Neundort and partly to that of Thommen. During the French period, it became an autonomous commune, like Thommen whose origins date back to Roman times.