Area of the Burgberg
Site of the old castle complex and seat of the dynasty of the noble lords of Frenz which came from the Duchy of Limburg (Province of Liège).
First mention of Hartpern de Fragenzo on April 13th, 1104.
Until 1303, the brothers Harper, Wilhelm and Wirich von Frenz are mentioned in various and important documents as witnesses and guarantors.
On May 9th, 1263, Wilhelm II von Frenz was made a citizen of the city of Cologne which was an exceptionally high distinction at that time.
His promise to protect the population of Cologne with all its possessions may be seen as the first reference for the existence of the first marksmen in the village of Frenz.
The St. Sebastianus Schützenbruderschaft is thus the 9th oldest of approx. 1,300 brotherhoods throughout Germany and was able to celebrate its 750th anniversary in 2013.
The properties of the noble lords of Frenz included a total of 6 large manors, the Fronhof, a compulsory mill, a brewery, rights to use forests, fishing rights in the Inde and the right to hold the criminal and low court. For some time the dominions of Stolberg and Setterich were part of the property as well.
The death of Wilhelm II in 1303 led to the extinction of the male line of the Frenz noble family.
From 1361 to 1393, the dominion of Frenz passed to the princely family of Merode and remained in their possession until 1825.
The Merode family also built the moated castle of Frenz (16th and 17th century) in the Inde valley behind the motorway towards Langerwehe (area to the right nexto to the Radermacher family farm).
The castle was destroyed in November 1944; the ruins were demolished in the early 1960s. Today, nothing reminds us of the once magnificent moated castle.