Crypto-Islam is the secret adherence to Islam while publicly professing to be of another faith; people who practice crypto-Islam are referred to as "crypto-Muslims." The word has mainly been used in reference to Spanish Muslims and Sicilian Muslims during the Inquisition (i.e., the Moriscos and Saraceni and their usage of Aljamiado). With the Portuguese Empire's expansion to the Far East and the Spanish Empire's spread to the Philippines from Latin America, Filipino Muslims and Portuguese Muslims were also subject to the Inquisition, one famous case being Alexo de Castro of the Spanish-occupied Moluccas, who was tried for crypto-Islam a continent away before the Mexican Inquisition.[1]