Excerpts from Books and Wikipedia
"Constantine the African (Latin: Constantinus Africanus; died before 1098/1099, Monte Cassino) was a physician who lived in the 11th century. The first part of his life was spent in Ifriqiya and the rest in Italy. He first arrived in Italy in the coastal town of Salerno, home of the Schola Medica Salernitana, where his work attracted attention from the local Lombard and Norman rulers. Constantine then became a Benedictine monk, living the last decades of his life at the abbey of Monte Cassino.
It was in Italy where Constantine compiled his vast opus, mostly composed of translations from Arabic sources. He translated into Latin books of the great masters of Arabic medicine: Razes, Ibn Imran, Ibn Suleiman, and Ibn al-Jazzar; these translations are housed today in libraries in Italy, Germany, France, Belgium, and England. They were used as textbooks from the Middle Ages to the seventeenth century." [Wikipedia]