Lorenzo Ghiberti (Italian: [loˈrɛntso giˈbɛrti]) (1378 – 1 December 1455), born Lorenzo di Bartolo, was an Florentine Italian artist of the Early Renaissance best known as the creator of the bronze doors of the Baptistry of Florence Cathedral, called by Michelangelo the "Gates of Paradise". Trained as a goldsmith and sculptor, he established an important workshop for sculpture in metal. His book of Commentari contains important writing on art, as well as what may be the earliest surviving autobiography by any artist.