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
Medieval Corsica the island was placed under the government of the newly organized Praetorian prefecture of Africa. However, the exarchate was not able to protect the island from the raiding by the Ostrogoths and the Lombards, who moved down into Italy from the north beginning in 568. After the loss of the African mainland territories of the exarchate to the Umayyad dynasty in 709, the empire's power in the West deteriorated further. Saracen raiders began to prey on Corsica, leading Liutprand the Lombard to invade circa 725 to preempt Saracen designs. The first Muslim raid on Corsica took place in 713. These