Felicia Roșu is a lecturer in early modern European history at Leiden University. She specializes in East Central European comparative politics as well as social and religious phenomena at the frontier between Europe and the Ottoman world. She teaches courses on historiography, early modern constitutionalism, and slavery. One of her current projects is a digital edition of sources from the Vatican Archives illustrating the activities of French missionaries in North Africa and other areas. The cases of Muslim slaves mentioned in the blog come from the correspondence between Propaganda Fide and the missionaries stationed in Tunis and Algiers in the second half of the seventeenth century.