Lorenzo Valla

Lorenzo Valla (; also latinized as Laurentius; 1 August 1457) was an Italian Renaissance humanist scholar, rhetorician, educator, and Catholic priest. He is best known for his historical-critical textual analysis that proved that the Donation of Constantine was a forgery, therefore attacking and undermining the presumption of temporal power claimed by the papacy. Lorenzo is sometimes seen as a precursor of the Reformation. Provided by Wikipedia