Norn was an industrial community founded in 1628 by Lars Larsson. It constructed a smelting-house for the excavation of iron ore. The industry had continued for almost three hundred years when it finally shut down in 1916, though the power station that supplied electricity to the village is still in use. There are several mines in the surrounding forest, although none of them is currently operating. The village consists of a number of houses including a chapel, a blacksmith, a school, a watermill, and alibrary.
There are still people living in the village, and it is a popular tourist site, particularly around midsummer, when a maypole is erected annually.
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.