Melchior Cibinensis was a Hungarian alchemical writer active in the first part of the 16th century. He is known for the Processus sub forma missae, an alchemical mass

Mass (liturgy)

"Mass" is one of the names by which the sacrament of the Eucharist is called in the Roman Catholic Church: others are "Eucharist", the "Lord's Supper", the "Breaking of Bread", the "Eucharistic assembly ", the "memorial of the Lord's Passion and Resurrection", the "Holy Sacrifice", the "Holy and...

, 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

Michael Maier

Michael Maier was a German physician and counsellor to Rudolf II Habsburg, a learned alchemist, epigramist and amateur composer.- Biography :...

.

The identity of Melchoir is still a subject of debate. The candidate proposed by Carl Jung

Carl Jung

Carl Gustav Jung was a Swiss psychiatrist and the founder of Analytical Psychology. Jung is considered the first modern psychiatrist to view the human psyche as "by nature religious" and make it the focus of exploration. Jung is one of the best known researchers in the field of dream analysis and...

 was Nicolas Melchior Szebeni. This Nicolas was chaplain and from 1490 court astrologer

Astrologer

An astrologer practices one or more forms of astrology. Typically an astrologer draws a horoscope for the time of an event, such as a person's birth, and interprets celestial points and their placements at the time of the event to better understand someone, determine the auspiciousness of an...

 to Vladislaus II of Bohemia and Hungary

Vladislaus II of Bohemia and Hungary

Vladislaus II, also known as Ladislaus Jagiellon ; was King of Bohemia from 1471 and King of Hungary from 1490 until his death in 1516...

 to whom the Processus was dedicated. It has more recently been proposed that Melchior was a pseudonym of Nicolaus Olahus

Nicolaus Olahus

Nicolaus Olahus ; January 10, 1493, Sibiu-January 15, 1568, Trnava/Nagyszombat) was the Archbishop of Esztergom, Primate of Hungary, and a distinguished Roman Catholic prelate.-Early life:...

. Another name given is Menyhért Miklós.