After the fall of the city of Granada, Spain, in 1492, the Muslim population was promised religious freedom by the Treaty of Granada, but that promise was short-lived. In 1501, Granada's Muslims were given an ultimatum to either convert to Christianity or to emigrate. The majority converted, but only superficially, continuing to dress and speak as they had before and to secretly practice Islam. The Moriscos (converts to Christianity) were ultimately expelled from Spain between 1609 (Castile) and 1614 (rest of Spain), by Philip III.