Demetrios Chloros (Greek: Δημήτριος Χλωρός) was a 14th-century Byzantine physician, astrologer, priest and sorcerer who was tried for possessing magic books.
[2] He was put on trial by the patriarchate of Constantinople because he had transcribed texts with content pertaining to magical practices, including the Coeranis, a portion or all of the Cyranides,[3] and a notebook of invocations and spells he had compiled himself,[4] suggesting he had access to various grimoires.
The synodal decree that condemned him gives equal weight to recounting his ecclesiastic career and his movements between Constantinople and the papal court.
Since other churchmen advertised themselves as knowledgeable occult practitioners, the mere possession of magic texts is not likely to have been the true or primary cause of action against him.
[8] Evidence in a later case against a physician named Gabrielopoulos included the discovery at his home of a book of spells by Chloros and the Cyranides.