 As part of this state, Ruthweiler passed in 1834 by sale – the price was 2,100,000 Thalers – to the Kingdom of Prussia, which made this area into the Sankt Wendel district in the Rhine Province.More locally, Ruthweiler lay within the "Bürgermeisterei" (“Mayoralty”) and later "Amt" of Burglichtenberg.Although the name "Burglichtenberg" is almost the same as "Burg Lichtenberg", the German name for Castle Lichtenberg, the name was not drawn from the castle itself, but rather from a small village that had arisen on the castle grounds after the castle itself had been burnt down in 1799.