Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Earliest 16th-Century Monasteries on the Slopes of Popocatepetl' has mentioned 'Altarpiece' in the following places:
Occurrence Sentence Text Source
The baptistery has an arch and in its wall are the remains of a painted altarpiece.
The main altarpiece is from the 16th century with only three in Mexico as old as it.