Invasion of Corsica (1553) 1 February 1553, a new Franco-Ottoman treaty of alliance, involving naval collaboration against the Habsburgs, had been signed between France and the Ottoman Empire. The Ottoman admirals Turgut and Koja Sinan, together with a French squadron under Baron Paulin de la Garde, raided the coasts of Naples, Sicily, Elba and then Corsica. The island of Corsica was occupied by the Genoese at the time. The Ottoman fleet supported the French by ferrying the French troops of Parma under Marshal Paul de Thermes from Siennese Maremma to Corsica. The French were also supported by Corsican exiles under Sampiero Corso and Giordano
Ancient Corsica a new problem with the Saracens, who ravaged the coasts of the island frequently. The Lombards also returned to the island, to fight against the Saracens. The conflict with the Saracens, which also drew in other significant powers that often laid claim to Corsica or a part thereof, dominated the fortunes of the island for several centuries. This period is almost unrecorded, except in the Chronicles of Giovanni della Grossa (1388-1464), which were written much later and are heavily infused with legends. Source material and research on the island are both sparse and as a result there have been few