The Frauenau branch rose to the rank of Barons (Freiherr) in the Kingdom of Bavaria and held a hereditary seat in the House of Councillors.

Records of the family begin with Rapoto de Paskengen mentioned in 1140 as a witness of a donation to the Augustinian monastery of Aldersbach.

[4] Further branches existed in Posching (in the areas around Mitterfels, Metten, Deggendorf and later also in Pförring near Ingolstadt), at the estate of Sicklasberg near Konzell and as councillors in Straubing.

After studying law and music at the University of Ingolstadt, he was a judge and administrator (Pfleger) in the service of the Barons of Degenberg at the castles of Linden near Viechtach and Neunußberg (1550-1568).

[7][5] Due to the possession of Oberanzenberg (since 1639) Wilhelm Poschinger received the noble title Landsass in Upper Palatinate on December 18, 1643 by Prince Elector Maximilian.

The matriculation in the Kingdom of Bavaria in the knight class took place on 30 January 1810 for Joseph Anton and on 30 June 1810 for his brothers Johann Martin and Georg Benedikt.