Roman morality being enforced upon social rather than religious grounds, witchcraft was forbidden only in so far as it was considered a pernicious influence within the State. Even in later times, when various kinds of magic were prohibited, magical rites for curing diseases and protecting the harvest from hail, snow, or tempest were not only allowed, but even encouraged. The Lex Cornelia de Sicariis et Veneficis provided against offering sacrifice in order to injure a neighbour. The maleficent sorcerer could be burned alive, and those who consulted him or her were liable to crucifixion. The possession of magical books was made criminal, and the administration of love-philtres was punishable by labour in the mines, or, in the case of persons of rank, by a fine. This contrasts with the earlier laws, which were interpreted in a far more liberal spirit and only enforced in extreme cases.

Already in the early days of the Laws of the Twelve Tables, Greek influence on Roman witchcraft was noticeable—it increased in proportion as Greek thought extended its sway over the Roman mind. By way of Greece also, as well as through independent channels, Oriental magic found its way to Rome, where the wisdom of the Egyptians was held in as high regard as in Greece itself. By the time of Marius, when the Romans had come into direct relations with the East, Chaldeans, sacrificers and interpreters of the Sibylline books positively swarmed in the city, while the use of love-philtres and waxen images was become among the commonplaces of every-day life.

How early Diana, whose close connection with the moon places her on a par with Hecate, came to be regarded as queen of the witches may be doubted; later Italian legends and customs are unanimous in according her that questionable honour. That must at least be a late conception which regards her as a constant visitor to the Witches' Sabbath, along with her daughter Herodias! Many such legends are still current in Tuscany, where, in common with other parts of Italy and Europe, Diana was worshipped long after Christianity was nominally supreme. The Italian "strege" are the direct descendants of the Latin "striges," who took their name from a bird of ill-omen that flies by night, the screech-owl, and witchcraft is still known to its votaries as "la vecchia religione," while actual belief in the old gods still survives in one form or other in many parts of the Peninsula.

It may here be noted that Herodias' father is sometimes said to have been no other than Lucifer. She also appears under the name of Aradia. Diana sends her to sojourn for a time on earth:—

Thou must go to earth below
To be a teacher unto women and men
Who would fain study witchcraft.
And thou shalt be the first of witches,
And thou shalt teach the art of poisoning,
And thou shalt teach how to ruin the crops of a rich peasant.
How to be revenged upon a priest.
Double the harm and do it in the name of Diana,
Queen of Witches all.

And Aradia taught mortals:—

To bless or curse with power friends or foes,
To converse with spirits,
To find hidden treasure in ancient ruins,
To conjure the spirits of priests who died leaving treasure,
To understand the voice of the wind,
To change water into wine,
To divine with cards,
To show the secrets of the hand,
To cure diseases,
To make the ugly beautiful,
To tame wild beasts.

Little cakes of meal, salt, honey and water are still made in the shape of Diana's horned moon, and are baked after an incantation to the goddess.