Ajaccio (French: ( listen); Italian: ; Latin: Adiacium; Corsican: Aiacciu ) is a French commune, prefecture of the department of Corse-du-Sud, and head office of the Collectivité territoriale de Corse (capital city of Corsica). It is also the largest settlement on the island. Ajaccio is located on the west coast of the island of Corsica, 210 nautical miles (390 km) southeast of Marseille.
The original city went into decline in the Middle Ages, but began to prosper again after the Genoese built a citadel in 1492 to the south of the earlier settlement. After the Corsican Republic was declared in 1755 the Genoese continued to hold several citadels, including Ajaccio, until the French took control of the island.
The inhabitants of the commune are known as Ajacciens or Ajacciennes. The most famous of these is Napoleon Bonaparte who was born in Ajaccio in 1769, and whose ancestral home, the Maison Bonaparte, is now a museum. Other dedications to him in the city include Ajaccio Napoleon Bonaparte Airport.
Ajaccio is located on the west coast of the island of Corsica, 210 nautical miles (390 km) southeast of Marseille. The commune occupies a sheltered position at the foot of wooded hills on the northern shore of the Gulf of Ajaccio between Gravona and the pointe de la Parata and includes the îles Sanguinaires (Bloody Islands). The harbour lies to the east of the original citadel below a hill overlooking a peninsula which protects the harbour in the south where the Quai de la Citadelle and the Jettée de la Citadelle are. The modern city not only encloses the entire harbour but takes up the better part of the Gulf of Ajaccio and in suburban form extends for some miles up the valley of the Gravona River. The flow from that river is nearly entirely consumed as the city's water supply. Many beaches and coves border its territory and the terrain is particularly rugged in the west where the highest point is 790 m (2,592 ft).