Peter A. Mazur is a Research Fellow at the University of York, UK. He achieved his PhD at Northwestern University, USA, in 2008. His research interests are primarily focused on the history of the Catholic church in the Counter-reformation and its relationships with religious minorities in the Italian peninsula.

• Introduction 1. From Jews to New Christians: Religious Minorities in the Making of Spanish Naples 2. Conversos in Counter-Reformation Italy 3. 'El de los Catalanes': The First Campaign against the New Christians, 1569-1582 4. The Rise of the Portuguese Merchant Bankers, 1580-1656 5. The Inquisition against the Vaaz Conclusion Documentary Appendix