The Liber Poententialis is a 7th-century set of ecclesiastical laws dealing with practices that the Christian church would later characterise as witchcraft. Introduced by Theodore, the seventh Archbishop of Canterbury (668–690), the penalties were mild when compared with those laid out in the later Witchcraft ActsA series of Acts passed by the Parliaments of England and Scotland making witchcraft a secular offence punishable by death. of the 14th century onwards, and they applied only to women, not to men. The punishments laid down were as follows:
The Liber Poenitentialis is considered by Jeffrey Burton Russell, Professor of History at the University of California, to be one of the most influential books of penance. It distinguishes between trivial matters attracting a penance of one year to more serious matters, requiring a penance of up to ten years, even though all of the offences listed are believed to be derived from the invocation of demons by way of nocturnal sacrifice.