On 25 June 1800, Prince Giulio Maria Tomasi leased Lampedusa in perpetual emphyteusis to Salvatore Gatt, a Maltese merchant, on the condition that the latter would build two coastal watchtowers at "Cala della Galere" and "Cala della Madonna". Gatt settled the island with some Maltese workers, and he imported livestock and began cultivating the land. The old castle was reconstructed, and a windmill was also built. Gatt hoisted the British flag for protection. On 27 June 1804, the prince conceded the island to Giuseppe Bugeja, another Maltese, although Gatt remained in control of the island.