In 1628, the Genoese leader Giovaninello de Pietru all'Arretta was attacked by the Pisans and held out on a rocky promontory above Calvi. Afterwards, he decided to fortify the place. In 1453, the banking company Officio San Giorgio was given control of Corsica, and it hired the architect Cristoforo Gandino to strengthen the fortifications. |
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