Complex sentence: Giovanni Aurispa (c.1370-1459), one of the learned Italians of the 15th century, who did so much to promote the revival of the study of Greek in Italy, was born at Noto in Sicily.
Split into simpler sentences: Giovanni Aurispa (c.1370-1459) was an Italian erudite of the 15th century. He is remembred in particular as a promoter of the revival of the study of Greek in Italy, was born at Noto in Sicily.