Cripta de Santa Engracia
The new Christian religion was adopted with great roots in Roman Zaragoza; a reflection of this is the great number of victims who suffered martyrdom in the first persecutions of the third century, when the city was already an Episcopal see. The Hieronymite monastery of Santa Engracia was built in the 15th-16th centuries on the site of the ancient Christian-Roman necropolis, where the two marble sarcophagi that are now kept in its crypt were found: the Receptio Animae and the Petrine Trilogy, dating from the 4th century.