Saint Lucian Tower first saw action in the raid of Żejtun of 1614, when it prevented an Ottoman force from landing in Marsaxlokk. In around 1715, as part of a programme to improve Malta's coastal defences, artillery batteries were built around three of the towers. Saint Lucian Tower was strengthened and renamed Fort Rohan in the 1790s, and saw use during the French capture of Malta and subsequent Maltese rebellion. The tower was turned into a polygonal fort by the British in the 1870s, and it was renamed Fort San Lucian.