<P> As recommended by Giotto, Andrea Pisano was awarded the commission to design the first set of doors in 1329 . The south doors were originally installed on the east side, facing the Duomo, and were transferred to their present location in 1452 . The bronze - casting and gilding was done by the Venetian Leonardo d'Avanzo, widely recognized as one of the best bronze smiths in Europe . This took six years, the doors being completed in 1336 . These proto - Renaissance doors consist of 28 quatrefoil panels, with the twenty top panels depicting scenes from the life of St. John the Baptist . The eight lower panels depict the eight virtues of hope, faith, charity, humility, fortitude, temperance, justice and prudence . The moulded reliefs in the doorcase were added by Lorenzo Ghiberti in 1452 . There is a Latin inscription on top of the door: "Andreas Ugolini Nini de Pisis me fecit A.D. MCCCXXX" (Andrea Pisano made me in 1330). </P> <P> The group of bronze statues above the gate depict The Beheading of St John the Baptist . It is the masterwork of Vincenzo Danti from 1571 . </P> <P> In 1401, a competition was announced by the Arte di Calimala (Cloth Importers Guild) to design doors which would eventually be placed on the north side of the baptistry . (The original location for these doors was the east side of the baptistry, but the doors were moved to the north side of the baptistry after Ghiberti completed his second commission, known as the Gates of Paradise .) </P> <P> These north doors would serve as a votive offering to celebrate the sparing of Florence from relatively recent scourges such as the Black Death in 1348 . Many artists competed for this commission and a jury selected seven semifinalists . These finalists include Lorenzo Ghiberti, Filippo Brunelleschi, Donatello and Jacopo della Quercia, with 21 - year - old Ghiberti winning the commission . At the time of judging, only Ghiberti and Brunelleschi were finalists, and when the judges could not decide, they were assigned to work together on them . Brunelleschi's pride got in the way, and he went to Rome to study architecture leaving Ghiberti to work on the doors himself . Ghiberti's autobiography, however, claimed that he had won, "without a single dissenting voice ." The original designs of The Sacrifice of Isaac by Ghiberti and Brunelleschi are on display in the museum of the Bargello . </P>

Who won the 1401 competition for the bronze doors for the baptistery in florence
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