Kingdom of Sardinia
On 17 March 1861, law no. 4671 of the Sardinian Parliament proclaimed the Kingdom of Italy, so ratifying the annexations of all other Apennine states, plus Sicily, to the Kingdom of Sardinia. The institutions and laws of the Kingdom were quickly extended to all of Italy, abolishing the administrations of the other regions. Piedmont became the most dominant and wealthiest region in Italy and the capital of Piedmont, Turin, remained the Italian capital until 1865, when the capital was moved to Florence. But many revolts exploded throughout the peninsula, especially in southern Italy, and on the island of Sicily, because of the perceived unfair treatment of the south by the Piedmontese ruling class. The House of Savoy ruled Italy until 1946 when Italy was declared a republic by referendum. In this referendum the southern regions, including Sardinia, voted overwhelmingly in favor of the House of Savoy, with the results being 63.8% in favor of maintaining the monarchy.
Sassari
In 1284 the Pisans were defeated by the Genoese fleet at the Battle of Meloria, and the city was able to free itself: it became the first and only early independent renaissance city-state of Sardinia, with statutes of its own, allied to Genoa; the Genoese were pleased to see it thus withdrawn from Pisan control. Its statutes of 1316 are remarkable for the leniency of the penalties imposed when compared with the penal laws of the Middle Ages.
From 1323 the Republic of Sassari decided to side with the King of Aragon, in whose hands it remained for much of the following centuries, though the population revolted at least three times. The revolts ceased when King Alfonso V of Aragon nominated the town as a Royal Burg, directly ruled by the King and free from feudal taxation, during a period in which it may have been the most populous city in Sardinia. Further attempts made by Genoa to conquer the city failed. In 1391 it was conquered by Brancaleone Doria and Marianus V of Arborea, of the independent Sardinian Giudicato of Arborea, of which it became the last capital. However, in 1420 the city was sold along with the remaining territory for 100,000 florins to the Crown of Aragon, replaced by Spain after 1479 on the joining of the Aragonese and Castilian thrones. During the period of Aragonese and then Spanish domination the city was known as "Sàsser" in Catalan language and "Saçer" in old Spanish.