Genovevaburg is a castle standing on the southwestern side of Mayen in the German state of Rhineland-Palatinate. The castle is the symbol of Mayen and has been rebuilt several times since first being destroyed in 1689. Its name comes from a legend, according to which the seats of counts palatine, Siegfried and his wife, Genevieve of Brabant (German: Genoveva), were supposed to be on the same hill in (or above) Mayen. The earliest references linking the legend to this region date to the 17th century. Since when the castle and its bergfried, the so-called Golo Tower (Goloturm), have been linked to the legend is unknown.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.