The Schweppermannsburg (also called Pfaffenhofen Castle) is a castle ruin in Pfaffenhofen, a district of the market town of Kastl (Lauterachtal) in the Upper Palatinate district of Amberg-Sulzbach in Bavaria. The complex is listed as an archaeological monument under the file number D-3-6635-0121 in the Bavaria Atlas as "archaeological findings in the area of the castle ruin "Schweppermannsburg" in Pfaffenhofen, hilltop settlements from the late Hallstatt/early La Tène period and the early Middle Ages". It is also listed as a listed building monument in Pfaffenhofen under the file number D-3-71-132-63.
The outer bailey of the spur castle is freely accessible at all times, the main castle with the keep is not.
The construction time of the complex is undated. Excavations in 2004 showed extensive building work in the 13th century and a few ceramic finds from the castle area indicate settlement activity as early as the 9th/10th - 11th/12th centuries. Pfaffenhofen was part of the original equipment of the Kastl monastery and has a settlement continuity that probably goes back to the 8th/9th century. Pfaffenhofen Castle was first mentioned in a document in the House Contract of Pavia in 1329, in which half of the complex went to the Duke of Bavaria, Ludwig the Bavarian.
From 1335 to 1352, Hartung the Schweppermann, a son of Seyfried Schweppermann, can be proven to have been (partially) the owner of the castle. At the end of the 14th century, Ulrich the Sweppermann finally appears as the lord of the castle. The Schweppermann family subsequently gave the castle its name.
In the 17th century, the complex was destroyed by Swedish troops during the Thirty Years' War and then hastily rebuilt. The castle complex fell into disrepair in the early 19th century and was only included in a renovation plan towards the end of the 20th century.
Since October 24, 2007, the castle has been owned by the chairman of the Amberg section of the German Alpine Association, who purchased it from the Free State of Bavaria
Source: Wikipedia