Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Old town of Regensburg with Stadtamhof' has mentioned 'Free imperial city' in the following places:
Occurrence Sentence Text Source
The Free Imperial City (yellow) and the Prince-Bishopric (purple) in the 18th century
In 1245 Regensburg became a Free Imperial City and was a trade centre before the shifting of trade routes in the late Middle Ages.