Gaddo di Zanobi Gaddi, Italian painter and mosaicist, the father of Taddeo Gaddi. He is recorded in the rolls of the Arte dei Medici e Speziali and written about by Giorgio Vasari, a 16th-century biographer of artists, but his oeuvre is largely conjectural. Vasari said that he was associated with Cimabue and Giotto. He completed mosaics on façade of Santa Maria Maggiore in Rome. The Coronation of the Virgin mosaic over the inside door of Florence Cathedral, dated 1307, is also attributed to Gaddo Gaddi. //