Among the Italian presidents, three came from Campania (all from Naples), three from Piedmont, two each from Sardinia (both from Sassari) and from Tuscany, one from Liguria, and one from Sicily.
Three representatives come from each region, save for the small Aosta Valley which appoints one, so as to guarantee representation for all localities and minorities.
According to the Constitution, the election must be held in the form of secret ballot, with all senators, all deputies and the 58 regional representatives all voting.
[13] On various occasions, officials had to intercede in the absence of a head of state (notably in the case of a president's resignation or ill health).
Only Enrico De Nicola, who was elected to be provisional head of state by the Constitutional Assembly on 28 June 1946, had an official title and took residence in the Quirinal Palace.