What mosaic inside the main church of Florence is attributed to Gaddo Gaddi?
Gaddo Gaddi:  The "Coronation of the Virgin" mosaic over the inside door of Florence Cathedral, dated 1307, is also attributed to Gaddo Gaddi. Florence Cathedral: The Cattedrale di Santa Maria del Fiore (] ; in English "Cathedral of Saint Mary of the Flower") is the main church of Florence, Italy.
Coronation of the Virgin