 However, it is debated exactly when during the 5th-century that the closure of the Parthenon as a temple was actually put in practice.It is suggested to have occurred in c. 481–484, in the instructions against the remaining temples by order of Emperor Zeno, because the temple had been the focus of Pagan Hellenic opposition against Zeno in Athens in support of Illus, who had promised to restore Hellenic rites to the temples that were still standing.At some point in the Fifth Century, Athena's great cult image was looted by one of the emperors and taken to Constantinople, where it was later destroyed, possibly during the siege and sack of Constantinople during the Fourth Crusade in 1204 AD.