Occurrence of Attributes in Original Text

The text related to the cultural heritage 'ShUM Sites of Speyer, Worms and Mainz' has mentioned 'Holy Roman Emperor' in the following places:
Occurrence Sentence Text Source
Holy Roman Emperor Henry VII meeting Jews in Rome, 1312
A justification for this claim was that the Holy Roman Emperor was the successor of the emperor Titus, who was said to have acquired the Jews as his private property.
Louis IV, Holy Roman Emperor, was a prolific creator of new taxes.