There is More than Meets the Eye. Undead, Ghosts and Spirits in the Decretum of Burchard of Worms
The Corrector, that is, the nineteenth book of Burchard of Worms’s Decretum, is widely recognized as one of the essential sources for the study of pagan survivals around the year 1000 A.D
Medieval Black Magic
Sins of evil black magic, as listed by the medieval theologian Burchard of Worms in the 11th century.
The Place of the Papacy in the Ecclesial Piety of the 11th-century Reformers
In the tenth century, it was still the Ecclesia rather than the pope which constituted the fundamental reality. The men of the Gregorian reform, in contrast, saw the Church as dependent upon the pope and derived in some way from papal power.