City Palace, Heritage monument in Treuchtlingen, Germany.

The Stadtschloss Treuchtlingen, also called Niedere Veste, is a four-winged former moated castle with an inner courtyard in Heinrich-Aurnhammer-Straße. Its east wing has four storeys, a gabled roof and an oriel turret; the north wing has three storeys and a shallow hipped roof, with a 16th-century core and upper floors from 1842. Inside are stucco and Renaissance ceilings and historic tiled stoves.

Georg zu Pappenheim bought the castle in 1447, likely on the site of a tower-mound fortification. Veit zu Pappenheim rebuilt it in 1575, and his son Gottfried Heinrich, a cavalry general of the Thirty Years' War, was born here on 29 May 1594. In 1647 it passed to the Ansbach principality, and in 1791 Karl Alexander von Brandenburg-Ansbach sold it to Prussia, which used it as an administrative office. In 1798 Johann Caspar Aurnhammer bought the dilapidated building; until 1926 it housed the family's braid and silk manufactory.

The palace is also called Niedere Veste, after the Obere Veste on the hill above. Since 1983/84 it has housed the town's spa and tourist information, along with the Altmühltal and Geopark Ries information centres. The Aurnhammer Collection and a passementerie museum can be visited inside.

The building is located in central Treuchtlingen and is easy to recognize from outside. The site is reachable on foot from the market square and offers a good overview of the town's historic architecture.

The structure holds the designation D-5-77-173-23 from Bavarian authorities, marking its status as a protected architectural heritage site within Germany.