you can still see the last traces of the eventful history of the mountain, which goes back at least 2500 years.
This can also be read on an information board. From Wikipedia:
"A fortified hilltop settlement of the Celts can be proven around 550 BC.
In the 12th century, Counts Ulrich and Poppo von Blassenberg built Culmberg Castle. In 1440 six fiefdoms of "Kulme" are mentioned in the land book.
In 1494, Frederick II, Margrave of Brandenburg-Kulmbach, had a watchtower built. It appears in the Wartordnung of 1498 as part of a system of watch and signal towers. In 1512, however, the margrave exchanged the Kulmberg manor for a fiefdom. The new owner Nikol von Heerdegen built a knight's castle on the mountain in 1513, whose "solid house" was destroyed by federal troops in 1553 during the Markgräfler war.
In 1614, Heerdegen sold the manor to the first wife of Margrave Christian, Marie of Prussia, who had the castle restored. At that time, the goods on the mountain were managed by the Unternschreez office.
In 1662, Margrave Christian Ernst gave the goods on the mountain to his young wife Erdmuthe Sophie. Between 1663 and 1668 she had a new castle, the Sophienburg, built from the castle that had already fallen into disrepair. According to tradition, this building was haunted by the White Lady. As early as 1687 it was no longer inhabited, and from 1724 it was no longer administered. It was left to decay, only the remains of the foundation remain today."