 Although glass production started to incur losses, these were covered by the "Hochstift" Mainz until its end in 1803.In 1805, the works were auctioned off and after that run by various entrepreneurs, but without much success.The Electoral Mainz area in the "Hochspessart" (High Spessart) was merged into the Principality of Aschaffenburg in 1803 and in 1810 it became part of the Grand Duchy of Frankfurt, shortly thereafter, however, passing between 1814 and 1816 to the Kingdom of Bavaria by way of Austria.