Former castle site
The castle stood on the northern end of the Nimberg, at an altitude of 236 meters. This elongated ridge is located in the north of the Freiburg Bay between the Dreisam and the Glotter.
The name Nimburg indicates a real castle name. Settlements with the name -burg (such as Strasbourg, Offenburg, Nimburg, Freiburg, Neuchâtel) owe their place names not from an aristocratic castle, but from a pre-medieval settlement or a late Roman fort that was visible in the area at that time. The oldest part of the Nimburg settlement was probably located in the area around the mountain church and can be dated to the time before the turn of the millennium, before the Counts of Nimburg settled here.
The settlement of today's Nimburg is attributable to the Counts of Nimburg.
The Counts of Nimburg received the title of Count in connection with the Investiture Controversy, i.e. before 1094. They probably built the castle in the 11th century when they obtained the title of Count. It is not known how the noble family von Nimburg acquired the eponymous place. It also remains unclear what the rule and its rights looked like.
On the Nimberg there was a monastery of the Augustinian monks, which stood on the site of the mountain church. The assumption is that the Counts of Nimburg donated the monastery before 1200. Today's church is built on the remains of a Romanesque church and has an unusual north-south orientation. It is believed that the ecclesiastical-monastery complex has walls that date from Roman times. That is why an early medieval church is assumed to be in this place. The latest archaeological investigations even suggest a wooden building from the Merovingian period at this point.