Hello, I have an ancestor named Margaretha Stich born 1797, who was the daughter of Lorenz Stich, of Hasselsdorf and Margareth Pfahlen Bauer, daughter of Lorenthin Bauer from Bettlarner, Tachau Region. Margaretha Stich married Johann Mathy in 1818 in the town of Hasselsdorf, which is now Host'ka, Czech Republic.
Interestingly, the parents of Johann Mathy were Mathes Mathy and Margaretha Dobner, daughter of Georg Dobner and Elisabeth Huttlin from Rosshaupt.
I don't know if this is any relation of yours, but I got this from a researcher in Czech Republic. Information is available through the Plzen Archives.