A castellan castle in Sagan is documented for 1202. It consisted of a wood-earth system. Apparently, a second castle complex soon existed, which was built by the Sagan Duke Konrad III in 1284. handed over to the Augustinian Canon Monastery, which had been relocated from Naumburg am Bober to Sagan that year. A third castle, to which today's castle goes back, located on the banks of the Bober, was sold in 1472 by Duke Hans II of Sagan to the House of Wettin.
After a fire, this system was rebuilt for Duke Georg von Sachsen as an irregular four-wing system. After 1549 the castle was owned by the Habsburgs, who enfeoffed the von Promnitz with the rule. In 1627 the duchy was sold to Albrecht von Wallenstein by Emperor Ferdinand II. After his order, a four-wing new building was built under the direction of Vicenzo Boccacci using two existing castle wings, which is considered to be the first building of the early Baroque in Silesia. After Wallenstein's murder, the buildings were stopped.
From 1646 Wenzel Eusebius von Lobkowicz was enfeoffed with the rule, who commissioned Antonio della Porta to complete the building with slight changes to the original plan. Wenzel Eusebius' grandson Philipp had the interior work done. From 1786, Duke Peter Biron von Kurland was in possession of the rulership, and had the interior of the palace redesigned in a classicist style. with stucco ceilings based on designs by Christian Valentin Schultze. Duke Peter also had an important art collection built. His daughter Louise Pauline had a chapel built in the east wing in 1839 according to plans by Leonhard Dorst von Schatzberg. Via the youngest daughter of Duke Peters, Dorothea von Sagan, the castle came to the Talleyrand-Périgord, who owned the castle even after the communist takeover of the region. However, when the Red Army moved in and in the late 1940s, the castle was completely looted. After repairs from 1965 to 1983, the castle serves as the city's cultural center. Source: Wikipedia