Francesco di Medici

Duke of Florence. The Department of Inquisition is under his command. He cannot be Pope since he is a bastard (illegitimate) son. Harboring a strong hatred for vampires, he frequently clashes with his younger sister, Cardinal Caterina, in her pursuits for negotiation and diplomacy. He does not compromise, and persists in responding with violence, often making decisions that will cost innocent lives "in the name of God."

(Source: Wikipedia)