The Italian Empire was divided up into "diocese" which were semi-autonomous from Rome. The largest and most important of these diocese was Italy Proper, which consisted of metropolitan Italy, Albania and Italian North Africa. In addition to Italy Proper, the Italian Empire lorded over Yugoslavia (divided into several smaller states), Greece and East Africa. Members of the House of Savoy were governors and viceroys of these diocese. The Italian Empire also was de facto in control of Bulgaria in the form of a puppet state.
After the Second World War, the country experienced a golden age and succeeded in annexing Kenya into the Empire, detonating an atomic bomb in 1950 and extended its sphere of influence in South America and the Middle-east. After the death of Benito Mussolini in 1963, the country became ruled by what was known as the Fascist Tetrarchy consisting of Galeazzo Ciano, Italo Balbo, Bruno Mussolini and Dino Grandi. Although the Tetrarchs all wanted more power for themselves, the system worked for a time, despite the bickering between the four men. During the years of the Tetrarchy, Italy concluded its Colonial War by crushing the independence movements and tightened their hold on Italy's overseas possessions.
After the death of Italo Balbo in 1968, the system continued in the form of a Triumvirate, however Bruno Mussolini, with the help of Dino Grandi, used his influence to consolidate power and usurp Ciano's position in the government, declaring himself Consul of the Italian Empire in 1971.