The Tribunal of the Holy Office of the Inquisition , commonly known as the Spanish Inquisition (Inquisición española), was established in 1478 by Catholic Monarchs Ferdinand II of Aragon and Isabella I of Castile. It was intended to maintain Catholic orthodoxy in their kingdoms and to replace the Medieval Inquisition, which was under Papal control. It became the most substantive of the three different manifestations of the wider Christian Inquisition along with the Roman Inquisition and Portuguese Inquisition. The "Spanish Inquisition" may be defined broadly, operating "in Spain and in all Spanish colonies and territories, which included the Canary Islands, the Spanish Netherlands, the Kingdom of Naples, and all Spanish possessions in North, Central, and South America." For the period during which Portugal and Spain were under common rule consult Portuguese Inquisition and Goa Inquisition.