The Wernloch was first mentioned in a document in 1236 in connection with quarry rights. The entire ridge between Wendelstein and Worzeldorf was previously called “Moofsersberg” and was first mentioned as such in 1343, but was probably already regularly cultivated in the early 11th century. It consists (from north to south): Knauersberg (353 m), Worzeldorfer Berg (387 m), Glasersberg (373 m), Steinberg (393 m) and Fischleinsberg (366 m). In the Middle Ages it was owned by the empire and was awarded as an imperial fief to imperial officials, the so-called butiglers, for special services. The Nuremberg Butiglers exercised lower royal rights and had overall supervision over the Reichswald. The Rieter von Kornburg and the von Seckendorff were also owners, but the imperial city of Nuremberg had the right to receive priority deliveries and, if the demand exceeded it, to break stones there itself. At that time, Kornpergstein was the legal and only permitted building material for hydraulic structures. In 1449, however, this privilege was one of the reasons for war that Margrave Albrecht Achilles put forward against the city of Nuremberg.[2] After the turmoil of the Margrave Wars, stone crushing increasingly became the main occupation. In 1595 alone, around 50,000 stones were delivered to Nuremberg from several quarries. From 1471 to 1806 the quarries were continually owned by the Nuremberg patricians.[3] Wilhelm Jegel, among others, is one of the owners from the 18th century. The individual quarries were called, for example, “Sonnengrub” (abandoned in 1789 after water seeped in), “Hohlsteiner Bruch”, “Steinbruck Glasersberg”, “Schnöckengruben”, “Waßerloch” and “Neugrub”. The oldest mines on the southern Kornberg, which were abandoned in the 15th century, were the Wässerloch and the Eisenhut. The rear and front Wernloch were operated until the early 19th century. The southeastern Fischelsberg was also dug up, but was no longer exploited as intensively and clearly
Source: Wikipedia