(1389-1464) A wealthy Florentine and an astute statesman, who brought power back to Florence in 1434 when he ascended to power; controlled the city behind the scenes, He skillfully manipulated the constitution and influencing elections; through his informal, cordial relations with the electoral committee, and was able to keep councilors loyal to him in the Signoria (the governing body of Florence, composed of 8 councilors)