Gian Giacomo Adria or Adria Johannes Jacobus de Paulo (born in Mazara del Vallo in Sicily c. 1485 - died in Palermo in 1560) was an Italian physician, historian and humanist.
[2] On 29 June 1510, he obtained the degree of Doctor of Philosophy and Medicine in Salerno.
[3] He began to practise the medical profession in Sicily.
In 1535, he took part in the conquest of Tunis as a physician and was made an Imperial Knight by Charles V. On his return to Rome, he took care of Pope Clement VII.
[2] He died at the age of 75 in Palermo where he was buried in the church San Francesco d'Assisi, Palermo, where the following epitaph can be read:[3] Hic jacet in suo sepulcro excellens Artium, et Medicinae Doctor Johannes Jacobus Adria de Paulo Siculus et Mazariensis Miles, et Medicus Imperialis, Siciliae Protomedicus, et concivis Panormitanus anno 1560.He wrote several works of a historical-scientific, literary and poetic nature.