Edgcumbe Staley, The Tragedies of the Medici
“ A man of far greater ability and more vaulting ambition than his brother, he was looked upon as the head of the family. In appearance he was prematurely old and withered up, with a pallid face and palsied frame, with great restless, staring eyes. He perpetually tossed his head about from side to side, as though afflicted with St Vitus’ dance. Giacopo was unmarried, a libertine, notorious as a gambler and a blasphemer, a spendthrift, and jealous—beyond bounds—of the popularity and pre-eminence of Piero and Lorenzo de’ Medici. He was pointed at as the most immoral man in Florence. ”
