Back in Athens, we will make one more stop before leaving the country. Here we will see the Metropolis Cathedral of Athens, the center of the Greek Orthodox Church. Outside are two statues. One is Damaskinos, a former archbishop of Athens. The other is what former Byzantine Ruler, the last ruler of the Byzantine Empire, who many believe did not die during the Siege of Constantinople but is instead encased in marble and will come back to complete his reign when Constantinople is again a Christian city? (Be specific, please. Give either the regnal number or his common subtitle.)
Constantine Paleologus or Constantine XI