The Poschinger are among the oldest families in Bavaria and already in 1140 Rapoto de Paskengen, the first of this name, is mentioned in a document. At the beginning of the 13th century, the nobles of Poschinger were named in the Quinzingau area. In the following years numerous bearers of the name can be found in the Danube region between Passau and Regensburg and it is assumed that they probably came from a seat in Stephansposching. A member of this family was “Heinrich der Poschinger”, who appeared in 1338 as ministerial of the Abbot Albert II of Metten. “Chunigund die Poschingerin” sold him the Manor “Püchel zu Posching”. Unfortunately, the evidence from this time is extremely incomplete, so that the secured genealogical sequence only begins with Joachim, who was probably born around 1520 in Pföring near Ingolstadt. Joachim studied law in Ingolstadt and became the guardian of the Degenbergs at the castle Linden and later a judge in Neunußberg.
In 1568 Joachim bought the Degenberg glassworks in Unterzwieselau and the history of the Poschinger family began – as one of the oldest families in the Bavarian Forest and probably also as one of the oldest industrial families in Germany; Long before the age of industrialization.
In 1605 the glassworks and the associated estate in Frauenau were acquired. Over the centuries, the family operated glassworks in Spiegelhütte, Buchenau, Oberzwieselau and Theresienthal. Under Johann Michael I the glassworks reached its greatest expansion.
On 17 September 1790 Churfürst Karl Theodor raised his four sons Johann Martin, Joseph Anton, Georg Dominik and Georg Benedikt to the old nobility of the Holy Roman Empire and the Churfürstentum with the noble title Edle von Poschinger, the Holy Roman Empire knight on Oberanzenberg.
The youngest of the four brothers, Georg Benedikt, took over the Frauenau estate in 1776 and became the progenitor of the baronial line.
The estate and the cottage in Frauenau were the only ones of their kind to be preserved over the centuries. The glassworks are the oldest in the Bavarian Forest with the oldest family tradition in the world.
Joseph Anton establishes the Upper Bavarian line of the family. Particularly noteworthy is the painter Richard von Poschinger (1839-1915) whose extensive work has only recently been compiled and honoured by Mrs. Georgine Fisch in her dissertation (published by Dietmar Klinger Verlag, Passau).
With the Waltersteig estate in Herrnhausen near Beuerberg, this family branch has now also become a "country estate" again. Vollrad Ritter von Poschinger manages the estate as an economic base for himself and his family and offers high-quality venison and Christmas trees for sale.