Petrus Gyllius or Gillius (or Pierre Gilles) (1490–1555) was a French natural scientist, topographer and translator.^[1]

Gilles was born in Albi, southern France. A great traveller, he studied the Mediterranean and Orient, producing such works as De Topographia Constantinopoleos et de illius antiquitatibus libri IV, Cosmæ Indopleutes and De Bosphoro Thracio libri III, in which he provided the first written account of the Bosphorus, in Latin,^[2] as well as a book about the fish of the Mediterranean. Sent by King Francis I of France to Constantinople in 1544-47 to find ancient manuscripts, he discovered a manuscript of the geographical work of Dionysius of Byzantium and wrote a Latin paraphrase of it. Most of his books were published after his death by his nephew. In 1533 he also translated Claudius Aelianus. He died of malaria in Rome while accompanying his patron, Cardinal Georges d'Armagnac.^[1]

As Pierre Gilles, Petrus Gyllius plays a small but significant role in Pawn in Frankincense, the fourth volume in the historical fiction series, The Lymond Chronicles, by Dorothy Dunnett.^[3]

• Gilles, Pierre; Ball, John transl. (1986). The antiquities of Constantinople (2nd ed. with new introduction and bibliography. ed.). New York: Italica Press. ISBN 978-0934977012. Retrieved 13 September 2014.
• Harris, Jonathan (2009). Constantinople : capital of Byzantium (. ed.). London: Hambledon Continuum. ISBN 9780826430861. Retrieved 13 September 2014.
• Kelly, Laurence (1987). Istanbul : a traveller's companion. London: Constable. ISBN 9780094677302. Retrieved 13 September 2014.
• Byrd, Kimberly (2008). Pierre Gilles' Constantinople : a modern English translation with commentary. New York, NY: Italica Press. ISBN 978-0934977692. Retrieved 13 September 2014.
• Gilles, Pierre; Byrd, Kimberly transl. (2008). Pierre Gilles' Constantinople: The Latin Text. New York, NY: Italica Press. ISBN 978-1599101231.

Media related to Petrus Gyllius at Wikimedia Commons

• Works by Petrus Gyllius at Project Gutenberg

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