The Christian name of Sylvester is borrowed from the Latin calendar. In modern Greek, as a diminutive, is added to the end of words: nor can any reasoning of Creyghton, the editor, excuse his changing into Sguropulus (Sguros, fuscus), the Syropulus of his own manuscript, whose name is subscribed with his own hand in the acts of the council of Florence. Why might not the author be of Syrian extraction?