
From 1282 priors were representatives of the seven Major guilds: they fighted against the old aristocratic families revenging an active role of trade in Florence.
This is the reason why you find grotesques in Florentine museums
In the same period Seymour Kirkup, the historian who financed works in the chapel of Mary Magdalene, was the owner of Dante's mask now preserved inside Palazzo Vecchio.
The Dante funeral mask, once thought real, is now believed a lost sculptural portrait. Donated to Florence in 1911, found in Ravenna in 1830.