Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pergamon and its Multi-Layered Cultural Landscape' has mentioned 'Tribute' in the following places:
Occurrence Sentence Text Source
In 238 his successor Attalus I defeated the Galatians, to whom Pergamon had paid tribute under Eumenes I.
Henceforth the city was required to pay tribute and accommodate and supply Roman troops, and the property of many of the inhabitants was confiscated.