Exorcism
In Christianity, exorcism is the practice of casting out demons. In Christian practice the person performing the exorcism, known as an exorcist, is often a member of the Christian Church, or an individual thought to be graced with special powers or skills. The exorcist may use prayers and religious material, such as set formulas, gestures, symbols, icons, amulets, etc. The exorcist often invokes God, Jesus and/or several different angels and archangels to intervene with the exorcism. Protestant Christian exorcists most commonly believe the authority given to them by the Father, Son, and Holy Spirit (the Trinity) is the source of their ability to cast out demons.
Traité sur les apparitions des esprits et sur les vampires ou les revenans de Hongrie, de Moravie, &amp;c.
Calmet researched a judicial case that described the possession of Mademoiselle Elizabeth de Ranfaing, who having become a widow in 1617, was later sought in marriage by a physician (afterwards burned under judicial sentence for being a practicing magician). After being rejected, he gave her philters to make her love him which occasioned strange developments in her health and proceeded to continuously give her some other forms of medicament. The maladies which she suffered were incurable by the various physicians that attended her and eventually led to a recourse of exorcisms as prescribed by several physicians that examined her case. They began to exorcise her in September, 1619. During the exorcisms, the demon that possessed her made detailed and fluid responses in varying languages including French, Greek, Latin, Hebrew and Italian and was reportedly able to know and recite the thoughts and sins of various individuals who examined her. She was further also able to describe in detail with the use of various languages the rites and secrets of the church to experts in the languages she spoke. There was even a mention of how the demon interrupted an exorcist, who after making a mistake in his recital of an exorcism rite in Latin, corrected his speech and mocked him.