Trebnitz Castle - a cosmopolitan place. The town and the Trebnitz estate were first mentioned in documents in 1224. At that time, Trebnitz was in the Lebus region, which was under the control of the Silesian princes. The monastery remained the feudal lord of the village until 1498. After a varied history of ownership, the castle passed to the von Brünneck family by inheritance in 1827. It remained in the family's possession until the Red Army expropriated the last estate owner, Harald von Brünneck, in 1945.
The castle in its current form was created through renovation work around 1900. At that time, the two side wings were added to the current central building. In this way, the simple manor house was transformed into a stately neo-baroque "castle". After the castle was transferred to the municipality in 1945, it was used in a variety of ways until 1992: military hospital, residential and office building, school, kindergarten and holiday camp. After 1992, the house was extensively renovated with the support of the federal and state governments and converted into a modern seminar house. Thousands of children, young people and adults from many European countries meet here every year as part of training and educational programs.
In recent years, almost all of the buildings on the historic estate have been restored, so that visitors today are treated to an impressive sight. Numerous initiatives and organizations have settled on the "Trebnitz Castle Campus" and enliven the site with their offerings. There is also a village shop with a café, the Gustav Seitz Museum, numerous public works of art and a 26-hectare castle park in the English landscape style.