Schloss Kuenburg, Rococo palace in Tamsweg, Austria.

Schloss Kuenburg is a two-storey Baroque palace in Tamsweg, east of the parish church on the road to Mauterndorf. Its main facade has nine windows on the first floor, plastered corner quoins and simple Baroque window frames. The flat-arched portal is set asymmetrically near the left edge, framed by stucco vases and trophies beneath the Kuenburg-Rollingen alliance coat of arms.

Christoph III. von Kuenburg, appointed Pfleger of Moosham in 1556, began buying properties in the Lungau; several houses documented since the 15th century were converted into a palais, completed in 1598. A market fire in 1742 badly damaged the building, which was rebuilt as a Baroque palace by the Lambrecht master builder Fidelis Hainzl. In 1681 a Fideikommiss was established, abolished in 1812 under Bavarian rule but effective until 1954, when the market town of Tamsweg bought the palace.

The Kuenburg-Rollingen alliance coat of arms on the entrance gate was forged in 1746 by Salzburg locksmith Philipp Hinterseer and topped with an iron crown. Inside, the central first-floor salon keeps the stucco coats of arms of both families, while a neighbouring room shows painted views of Neukirchen and Moosham castles, attributed to Johann Lederwasch and dating from the mid-18th century.

The building now functions as a cultural center run by the city, housing a public library and spaces for music rehearsals. Visitors should check opening times in advance since it primarily serves as a working facility.

The grand entrance portal displays an original wrought iron coat of arms marking a marriage alliance between two noble families in the 18th century. This detail is easy to overlook but reveals much about the building's connections and importance.