Also known as Andrea di Ugulino di Nino.
Sculptor and architect.
Born c.1273 in Pisa, Italy; died in 1348 in Florence, Italy.
A pupil of Giovanni Pisano, he went later to Florence where he was influenced by Giotto, from whom he derived the beginnings of naturalism in his art.
Having worked as a goldsmith, he was commissioned in 1330 to design the first bronze doors of the baptistery of Florence, those on the south side.
Twenty of the sculptured panels show the life of John the Baptist, and in eight the Virtues are represented.
Put in charge of the building of the campanile of the Duomo after the death of Giotto, he carved the majority of the lower reliefs.
He designed the facade of the cathedral of Orvieto.
New Catholic Dictionary