↑"... domino Niccolao plebano Empolis, domino Johanne plebano Sancti Johannis maioris ...": David S. Peterson, "Electoral politics and the Florentine clergy: a meeting of the "Maius Concilium" in 1424" in Renaissance Studies vol. 5 (1991) pp. 359-397 ad p. 394
↑"Empolis, Empolum": Nomi d'Italia - AAVV, De Agostini