Most Pagan traditions have common to them the idea of Watchtowers, beings who guard the elemental quarters of the circle. The Strega have a hierarchy of beings who occupy these plains. First, there are Elemental Lords, who equate to the traditional Watchtowers.
Above these are the Grigori, The Watchers. They serve as guardians to the portals between "the worlds"- the physical world and what lies beyond. They are the Protectors of our ways. The Grigori are called upon to preside over our rites, allowing magickal acts to establish themselves in the Astral Plane, or dispell them. They are a stellar race, gazing down from the skies, watching the Strega and assisting in their rites. They occupy the position of the 4 Royal Stars - Aldebaran, Regulus, Antares and Fomalhaut. The Grigori are the original essance behind the four Archangels. It is believed that the Grigori escort the Strega to the realm of Luna after physical death.
They are called Alpeno, Guardian of the East, Settrano, Guardian of the South, Meana, Guardian of the West, and Taga, Guardian of the North.