Among muezzins and bells. Constants on the conversion of Jewish communities in cathedrals

The peninsular Middle Ages, marked by its character of political, religious and cultural frontier, knew an interesting phenomenon of accommodation and transformation of architectural structures for two societies of different creed: the Christian and the Muslim. This article deals with the conversion of mosques into cathedrals from the beginnings of the Iberian Reconquest up to the 15 th century and with the problems that carried the adequacy of a space, conceived for a concrete liturgical need, into another one.