The Transformation of a Religious Landscape paints a detailed picture of the sheer variety of early medieval Christian practice and organization, as well as the diverse modes in which church reform manifested itself in the eleventh and twelfth centuries. From the rich archives of the abbey of the Holy Trinity of Cava, Valerie Ramseyer reconstructed the complex religious history of southern Italy. No single religious or political figure claimed authority in the region before the eleventh century, and pastoral care was provided by a wide variety of small religious houses. The line...