Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Speyer Cathedral' has mentioned 'Well' in the following places:
Occurrence Sentence Text Source
Over the centuries, crypts developed from tiny chambers into large semi-subterranean and very articulated hall crypts, which became standard forms in Italy and Germany, sometimes extending under the transepts as well as the chancel.
The concept of the double chapel was well established by the end of the 11th century, dating back to the time of Charlemagne and commonly used in imperial and Episcopal chapels.
Criterion (ii): The Speyer Cathedral has exerted a considerable influence not only on the development of Romanesque architecture in the 11th and 12th centuries, but as well on the evolution of the principles of restoration in Germany, in Europe and in the world from the 18th century to the present.