Lorenz from Berthelsdorf

I am looking for my great grandmother's family from Berthelsdorf, Kreis Landshut, Schlesien. Her name is Anna Maria Magdalene LORENZ. She was born in April, 1848 and was married to Ernst FRACHE from Gaablau, Kreis Landeshut, Schlesien. If anybody has come across the Lorenz surname in that general area of Schlesien I would appreciate receiving the names.