The surgeon Lanfranc of Milan , variously called Guido Lanfranchi , Lanfranco or Alanfrancus , was a student of Guglielmo da Saliceto. Involved in the struggles of Guelphs and Ghibellines, he was exiled from Milan by Matteo I Visconti in 1290. He moved first to Lyons, then on to Paris. There he became a popular professor of surgery at the Collge de St. Cme.
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Source: Wikipedia