Italian form of Cosmas. A famous bearer was Cosimo de' Medici (1389-1464), the founder of Medici rule in Florence, who was a patron of the Renaissance and a successful merchant. Other members of the Medici family have also borne this name.
Latinized form of Wido. Notable bearers include the music theorist Guido d'Arezzo (c. 991-1033), poet Guido Cavalcanti (c. 1250-1300), and Baroque painter Guido Reni (1575-1642).