Their Kingdom ended with the referendum by which Italians chose the republic as the form of state - see also birth of the Italian Republic. Under the Constitution of the Italian Republic, male descendants of the House of Savoy were forbidden from entering Italy. This provision was removed in 2002.
The house descended from Humbert I, Count of Sabaudia (or "Maurienne") (Italian Umberto I "Biancamano"), (1003-1047 or 1048), and includes the Counts of Savoy, the Dukes of Savoy, the Kings of Sardinia, and the Kings of Italy. Piedmont was later joined with Sabaudia, and the name evolved into "Savoy" (Italian "Savoia").
Its name is derived from the palace of Peter of Savoy, uncle of Eleanor of Provence, wife of Henry III.
Destroyed (1381) in the Peasants Revolt, the palace was rebuilt (1505) as the Hospital of St. John of Jerusalem by Henry VII and finally destroyed when its foundations were removed in 1810 before the Waterloo Bridge was built.
The Savoy Conference of 12 bishops of the Church of England and 12 Puritan divines was convened in 1661.