Question: What mosaic inside the main church of Florence is attributed to Gaddo Gaddi?
Sentence (from "Florence Cathedral"): Il Duomo di Firenze, as it is ordinarily called, was begun in 1296 in the Gothic style with the design of Arnolfo di Cambio and completed structurally in 1436 with the dome engineered by Filippo Brunelleschi.
Relevant evidence: No