During the medieval and early modern periods the Welsh diocese of St Davids was one of the largest in the country and the most remote. As this collection makes clear, this combination of factors resulted in a religious life which was less regulated and controlled by the institutional forces of both Church and State. Addressing key ideas in the development of popular religious culture and the stubborn continuity of long-lasting religious practices into the modern era, the volume shows how the diocese was also a locus for continuing major religious controversies, especially in the nineteenth century.