In brief
Norman architecture is manifested in a religious and fortified building.
Useful to know
Durham Cathedral was built in the late 11th and early 12th centuries. UNESCO emphasizes the innovation of its vaults and their relationship to the development of Gothic. The nearby castle is a Norman fortress and the residence of the Princes Bishops. [1]
In comparison, it doesn't just look for external similarities. The cathedral organized a large interior space, while the fortified complex solved other tasks. The general ensemble shows how a religious and political role can be present in adjacent, differently constructed buildings.
Sources
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