Who did Pope Sergius III depose to become the pope?
Antipope Christopher
Pope Leo V
Pope Formosus
Pope Stephen VI
Answer
Pope Sergius III seized the papal throne from Antipope Christopher, who had previously deposed Pope Leo V. Sergius' rise to power was supported by Theophylact I of Tusculum.
Sergius III Knowledge Kombat: 21 Questions to Battle for Superiority