House of Savoy to decide between retaining the monarchy or becoming a republic. On 9 May 1946, in a last-ditch attempt to save the monarchy, Victor Emmanuel formally abdicated in favour of his son, who became Umberto II. It did not work; the Italian constitutional referendum, 1946 was won by republicans with 54% of the vote. Victor Emmanuel went into exile in Egypt, dying there a year later. On 12 June 1946, the Kingdom of Italy formally came to an end as Umberto transferred his powers to Prime Minister Alcide de Gasperi and called for the Italian people to support the new republic.
Umberto II of Italy limited to male-line descendants only. He was the first cousin of King Alexander I of Yugoslavia. He was accorded the title of Prince of Piedmont, which was formalised by Royal Decree on 29 September. Umberto was married in Rome on 8 January 1930 to Marie José of Belgium (1906–2001), daughter of King Albert I of the Belgians and his wife Queen Elisabeth, "née" Duchess Elisabeth in Bavaria. They had four children: As Prince of Piedmont, Umberto visited South America, between July and September 1924. With his preceptor, Bonaldi, he went to Brazil, Uruguay, Argentina and Chile. This trip was part