knights wearing full plate armor. Conversions and expulsions The new Christian hierarchy demanded heavy taxes from non-Christians and gave them rights, such as in the Treaty of Granada (1491) only for Moors in recently Islamic Granada. On 30 July 1492, all the Jewish community – some 200,000 people – were forcibly expelled. The next year, the Alhambra decree ordered the expulsion of practicing Jews, leading many of them to convert to Catholicism. In 1502, Queen Isabella I declared that conversion to Catholicism was compulsory within the Kingdom of Castile. King Charles V imposed the same religious requirement on Moors in the Kingdom of Aragon in 1526, forcing its Muslim population to convert during the Revolt of the Germanies. Spanish Inquisition Making things more complex were the many former Muslims and Jews known as Moriscos, Marranos, and Conversos, who shared ancestors in common with many Christians, especially among the aristocracy, causing much concern over loyalty and attempts by the aristocracy to hide their non-Christian ancestry. Some – the numbers are debated – continued to secretly practice their religions and use their languages well into the sixteenth century. Those that the Spanish Inquisition found to be secretly practicing Islam or Judaism were executed, imprisoned, or exiled. Nevertheless, all those deemed to be "New Christians" were repeatedly suspected of illegally continuing in secret to practice their religions various crimes against the Spanish state including continued practice of Islam or Judaism. New Christians were subject to many discriminatory practices starting in the sixteenth century. Classifications and later consequences The many advances and retreats created several social types: The Muwallad: Christians under Islamic rule who converted to Islam after the arrival of the Muslim Arabs and Berbers. The Mozarabs: Christians in Muslim-held lands. Some of them migrated to the north of the peninsula in times of persecution bringing elements of the styles, food and agricultural practices learned from the Andalusians, while they continued practicing their Christianity with older forms of Catholic worship and their own versions of the Latin language. "New Christians": Jews converting to Christianity called conversos, or pejoratively Marranos. Jews converted to Christianity voluntarily or through force. Some were Crypto-Jews who continued practicing Judaism secretly. All remaining Jews were expelled from Spain as a consequence of the 1492 Alhambra Decree, and from Portugal in 1497. Former Jews were subject to the Spanish and Portuguese Inquisitions, established to enforce Christian faith and practice, which