In 981, Bergweiler had its first documentary mention as Wilre, an archaic form of the German word Weiler, meaning “hamlet”.

In 1669 and 1833, the church was newly built on the same spot in what was then the centre of Bergweiler (Unterdorf, or “Lower Village”).

The Fintenkapelle, outside the village, from the 17th century, frequented as a local pilgrimage church, was in 1959 likewise renovated.

Before the French Revolution, the Lords of Warsberg held the landlordship in the Imperial Knightly Lordship of Bergweiler.

[3] The German blazon reads: Schild geteilt, oben in Schwarz ein goldbekrönter und goldbewehrter silberner wachsender Löwe, unten Silber-Rot geschacht.

To establish the historical basis for Bergweiler's coat of arms, one must go back to the territorial situation before 1789.

Bergweiler's coat of arms must therefore express both the overlordship of the Counts of Sponheim and the landlordship of the Barons of Warsberg.

This was done by composing a coat of arms party per fess (divided crosswise through the centre) whose lower half shows the Sponheims’ silver and red checkerboard pattern, and whose upper half shows a black field charged with the Warsbergs’ silver lion.