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,
Maria Theresa of Austria-Este, Queen of Sardinia she left with her family first to Tuscany and then to Sardinia. After the abdication of Charles Emmanuel IV of Sardinia in 1802, Maria Theresa became queen consort, but she had to wait on the island of Sardinia for the end of the war in 1814 to return to the capital Turin. Maria Theresa was initially enthusiastically welcomed in Turin, but she soon aroused great discontent among the public. She was accused of wishing to undermine and abolish so much as possible of the reforms initiated during the French occupation, and was additionally said to treat all whom cooperated with