The focus of this publication is Ferdinando Tacca’s small-scale reduction of the monument to Ferdinando I, Grand Duke of Tuscany, situated in Livorno, which has been described as “arguably one of the most politically and socially charged public monuments in early modern Europe”. We are especially investigating Ferdinando’s reduced renditions of his father, Pietro Tacca’s, extraordinarily powerful over life-size bronze figures of the “Quattro Mori” which are situated at the four corners of the base.