Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Cologne Cathedral' has mentioned 'Frederick Barbarossa' in the following places:
Occurrence Sentence Text Source
In 1164, the Archbishop of Cologne, Rainald of Dassel, acquired the relics of the Three Kings which the Holy Roman Emperor, Frederick Barbarossa, had taken from the Basilica of Sant'Eustorgio, Milan, Italy.
It is traditionally believed to hold the remains of the Three Wise Men, whose relics were acquired by Frederick Barbarossa at the conquest of Milan in 1164.