 It was also at this time that Dennweiler, Frohnbach and Körborn found themselves in the Kingdom of Bavaria anyway as a result of what had been decided at the Congress of Vienna.In 1835, the then "Amtsbürgermeister", named Sohns, bought the former Lichtenberg Castle scrivener's building at auction to set up a school within it for the pupils from Burglichtenberg, Thallichtenberg and Ruthweiler.Thallichtenberg got its own school in 1845, while in 1870, the schoolhouse at the castle burnt down, and then a new one was built in Ruthweiler to serve Burglichtenberg and Ruthweiler.