Melchior Cibinensis was a Hungarian[1] alchemical writer active in the first part of the 16th century.
He is known for the Processus sub forma missae, an alchemical mass,[2] now dated to around 1525; it was published in the Theatrum Chemicum of 1602, and formed part of a celebrated later collection Symbola Aureae Mensae from 1617 of Michael Maier.
The candidate proposed by Carl Jung was Nicolas Melchior Szebeni.
[4] This Nicolas was chaplain and from 1490 court astrologer to Vladislaus II of Bohemia and Hungary to whom the Processus was dedicated.
[5] It has more recently been proposed that Melchior was a pseudonym of Nicolaus Olahus.