Answer:
Saladin
Step-by-step explanation:
Saladin was not a cleric who helped advance and explain the Christian faith in Europe during the Middle Ages. He was a Muslim sultan and military leader who fought against the Crusaders and recaptured Jerusalem in 1187. The other three men, Benedict of Nursia, Patrick, and Thomas Aquinas, were all clerics who contributed to the Christian faith in various ways. Benedict of Nursia was an Italian Christian monk, writer, and theologian who founded the Benedictine Order and wrote the Rule of Saint Benedict. Patrick was a Romano-British Christian missionary and bishop who is regarded as the patron saint of Ireland. Thomas Aquinas was an Italian Dominican friar and priest, an influential philosopher and theologian, and a jurist in the tradition of scholasticism who wrote the Summa Theologiae and the Summa contra Gentiles.