Borri, Joseph Francis. A great Hermetic philosopher, born at Milan in the 17th century. He was an adept, an alchemist and a devoted occultist. He knew too much and was, therefore, condemned to death for heresy, in January, 1661, after the death of Pope Innocent X. He escaped and lived many years after, when finally he was recognised by a monk in a Turkish village, denounced, claimed by the Papal Nuncio, taken back to Rome and imprisoned, August 10th, 1675. But facts show that he escaped from his prison in a way no one could account for.
Source: H.P.Blavatsky - The Theosophical Glossary