On the right, twelve apostles from the New Testament kneel before a group of male saints. They are dressed in red vestments symbolizing martyrs; the Popes and other clergy representing the church hierarchy. A number are recognizable, including Saint Stephen who carries the rocks with which he was stoned. Three popes in the foreground represent the Western Schism—a dispute that festered and lingered in Ghent—and are identifiable as Martin V, Gregory VII and Antipope Alexander V. Dhanens suggest the positioning of popes standing beside antipope shows "an atmosphere of reconciliation".