Claim: Clementine Chapel has a marble monument that was placed by Emperor Constantine.
Evidence: Open today for pilgrims , the site venerates the original pavonazzo marble monument placed there by Emperor Constantine , and was used in early medieval times to house the skull of St. Peter	pavonazzo marble	pavonazzo marble	Emperor Constantine	Constantine the Great
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The Clementine Chapel , also known as La Clementina , is a particular Roman Catholic chapel located within the underground necropolitan grottoes of Saint Peter 's Basilica in Vatican City.