Sardinia world (22 centenarians/100,000 inhabitants). Sardinia is the first discovered Blue Zone, a demographic and/or geographic area in the world with an oversize concentration of centenarians and supercentenarians. In 2016 there were 50,346 foreign national residents, forming 3% of the total Sardinian population. The most represented nationalities were: Sardinia's most populated cities are Cagliari and Sassari. The Metropolitan City of Cagliari has 431,302 inhabitants, or about ¼ of the population of the entire island. Eurostat has identified in Sardinia two Functional Urban Areas: Cagliari, with 477,000 inhabitants, and Sassari, with 222,000 inhabitants. Sardinia is one of the five Italian autonomous regions,
Flag of Sardinia Aragon The four moors already represent the Kingdom of Sardinia but no trace is found in the island. Imperial ideology of Charles V, Habsburg House, A little kingdom within an enormous empire The four moors appear more frequently in prints, paintings, artifacts both in Sardinia and in all publications heraldic vintage. Habsburg House (Spanish branch) Out of the island the artists run wild Savoy House As the title of King of Sardinia was the only one who gave the ruling dynasty the coveted title, the coat of arms is enhanced and developed and overlaid with emblems of the other states