An "Inquisitor" refers to an official who conducts investigations, particularly in the context of religious or legal matters. Historically, inquisitors were associated with the Inquisition, a group established by the Catholic Church to combat heresy and enforce religious orthodoxy. They had the authority to interrogate, investigate, and sometimes punish individuals suspected of holding beliefs contrary to church teachings. Inquisitors played a significant role during the Middle Ages and the Renaissance, often using methods that included questioning and trial. Their actions were aimed at maintaining religious conformity and protecting the faith, but they are also remembered for their controversial and often harsh methods.