The full resume of Baron de Beyerlé included Lord of Niderviller, Schneckenbusch, Wuischviller and other places, adviser to the king, Director of the Court of Currencies, master treasurer of the mint of Strasbourg, Ecuyer (member of Nobility of the Second Order), Lawyer, author and Freemason.
When Francis I, Holy Roman Emperor, who was also the Duke of Lorraine, died in 1765, the north-eastern territory reverted to the French crown, and the manufactory was then subject to new, even tighter restrictions on production and decoration, as the royal Sèvres porcelain factory had been given various forms of monopoly.
Various difficulties, including a fire that gutted the production building and a limitation on the manufacture of soft-paste porcelain, discouraged the original investors.
He subsequently entered into partnership with François-Henri Lanfrey and the factory began producing faience in the English style of tableware.
This led to the temporary closing of the plant when the regime confiscated his property; the workmen, summarily laid off, travelled to Paris to find work, and several signed a petition for her release.
In 1871 the area became part of Germany; by then the factory was trading as "S.A. Faïencerie de Niderviller" in French or "Steingutfabriek Niederweiler A.G." in German.
[7] Documentary evidence from Niderviller indicates that in 1759 a large staff was employed at the pottery, in addition, the names of all the employees are given, with the wages each man received.
Eleven painters and two sculptors were engaged, which shows that the factory founded by Jean Louis de Beyerlé, towards 1754, had made great progress.