Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Santiago de Compostela (Old Town)' has mentioned 'Fortress' in the following places:
Occurrence Sentence Text Source
During this same 10th century and in the first years of the 11th century Viking raiders tried to assault the town[26]xe2x80x94Galicia is known in the Nordic sagas as Jackobsland or Gallizalandxe2x80x94and bishop Sisenand II, who was killed in battle against them in 968,[27] ordered the construction of a walled fortress to protect the sacred place.