Gaddi. I. Gaddo, a Florentine artist, born in 1249, died in 1312. He was an excellent worker in mosaic, and is considered the founder of the modern mosaic art. He also painted altarpieces.

II. Taddeo, a painter, son of the preceding, born about 1300, died about 1360. His decorations of the Spanish chapel in the church of Santa Maria Novella at Florence, in competition with Memmi, are among the finest specimens of art produced in the 14th century. On one of the walls of this chapel are the reputed portraits of Petrarch and Laura. Taddeo was also distinguished as an architect.

III. Angelo, son of the preceding, born about 1324, died about 1390. He was an imitator of his father and of Giotto, but did not improve in proportion to his abilities. He lived for many years in Venice, where he engaged in commerce, and has been considered the founder of the Venetian school.