Occurrence of Attributes in Original Text

The text related to the cultural heritage 'San Pedro de la Roca Castle, Santiago de Cuba' has mentioned 'Fortifications' in the following places:
Occurrence Sentence Text Source
Between 1663 and 1669 the engineers Juan Cxc3xadscara Ibxc3xa1xc3xb1ez, Juan Cxc3xadscara Ramirez and Francisco Perez worked on repairing the damage and improving the fortifications, strengthening the flanks and constructing a new artillery platform.