The owners were the Barons von Wallbrunn and von Wambold, who were able to jointly continue their originally knightly rule until the end of the 18th century, when the French occupied the left bank of the Rhine.
The seat of power for the von Wallbrunns was Wallbrunn Castle, which was located below the fortified church. It was built in 1459 AD and is said to have once been connected to the church by underground passages. The church was built in 1190 AD and burned down in 1435 AD. After its reconstruction, it became a place of pilgrimage for many believers, because the fire had spared the monstrance with the hosts - after such great destruction, this was nothing short of a miracle! The original, old stained glass windows and the altar of the church can be viewed in the museum in Darmstadt. From 1467 to 1790 AD, the von Wallbrunns were rulers of Partenheim without interruption. During the French Revolution, however, the German nobility was expelled from the left bank of the Rhine, and Partenheim also fell victim to the French occupation.
However, the widow of the last Baron von Wallbrunn put up with the rule of the French and was able to save the property and the castle. She died in 1832 at the age of 82, and her son also died a few years later. With his death in 1838, the family died out and the property passed to three Partenheim citizens.
Source: Schlossgut Deutschmann