According to the writings in The Lesser Key of Solomon, Sytry is the twelfth spirit listed in the Goetia. He is a Great Prince of Hell with sixty legions of demons under his command.
He is depicted as a humanoid with the head of a leopard and the wings of a griffin, but at the request of the conjurer can take the form of a very handsome man. He can force men and women to love one another and make them appear naked if the conjurer desires.
He can also reveal the secrets of women, often mocking them.