[e] Malaspina, op. cit.
[f] N. Macchiavelli, History of Florence.
g G. B. Testa, op. cit.
[h] B. Duffy, Tuscan Republics.
Chapter V. The Free Cities and the Empire (First Half of the Fourteenth Century)
[b] P. A. Daru, op. cit.
[c] J. C. L. S. de Sismondi, op. cit.
[d] Giovanni Villani, Florentine History.
[e] L. Pignotti, op. cit.
[f] H. E. Napier, op. cit.