Master Manfred with Paolo da Campagnano, both Comacines, built the Ponte Sisto, which has been erroneously attributed to Baccio Pontelli.
Pope Sixtus IV. employed Giovanni di Dolci to build the citadel of Civita Vecchia, which Baccio Pontelli finished after Giovanni's death. Antonio di Giovanni da Canobbio built the fort at Zolfanella in the same reign, while Francesco di Pietro da Triviago, Francesco da Como, and Giorgio Lombardo were joint architects of the castle at Santa Marmella. So we see that nearly all the papal forts were the work of Lombards connected with the Roman Lodge. In their own native hills the Lombards were doing similar works.
Court of the Bargello, Florence. Built by Jacopo "Tedesco."
Tower of Palazzo Vecchio at Florence. Designed by Magister Arnolfo.