Grimorium Verum: Drawn from the Greater Key of Solomon and written in French, this book probably was written in the mid-18th century. Claims were made that it was translated from Hebrew by a Dominican Jesuit named Plaingiere and was published by “Alibeck the Egyptian” in 1517.
Its full title is Grimorium Verum, or the Most Approved Keys of Solomon the Hebrew Rabbin, wherein the Most Hidden Secrets, both Natural and Supernatural, are immediately exhibited, but it is necessary that the Demons should be contented on their part.
The Grimorium Verum nearly copies the Key of Solomon in instructions for preparation of the magician and his tools but provides different instructions for the preparation of the virgin parchment and for the evocation and dismissal of spirits. There is an entirely different hierarchy of Demons, who number 30 and who report to three leaders, Lucifer, Beelzebub, and Astaroth, who have among them six deputy chiefs.
The material also shows influences from Lemegeton. It includes the “Admirable Secrets” of the pseudo-Albertus Magnus, or Little Albert, which appear in other later grimoires.
The Grimorium Verum covers the “Genuine Sanctum Regnum,” or the true method of making pacts.