Anancithidus
Leonardus describes this as "a necromantic stone, whose virtue is to call up evil spirits and ghosts." Anania, or Agnany (Jean d'): A lawyer of the fifteenth century, who wrote four books, entitled, De Naturà Dæmonum, (On the Nature of Demons), and a treatise on Magic and Witchcraft, neither of which works are well known. He died in Italy in 1458.