Following the expulsion of the Arabic Moors and most of the Sephardic Jews from the Iberian peninsula, the remaining Jews and Muslims were forced to convert to Roman Catholicism, becoming "New Christians", who were sometimes discriminated against by the "Old Christians" in some cities (including Toledo), despite condemnations by the Church and the State, which both welcomed the new flock. The Inquisition was carried out by members of the Dominican Order in order to weed out the converts who still practiced Judaism and Islam in secret. The system and ideology of the "limpieza de sangre" ostracized false Christian converts from society in order to protect it against treason. The remnants of such legislation persevered into the 19th century in military contexts.