Umberto II, full name Umberto Nicola Tommaso Giovanni Maria di Savoia (15 September 1904 – 18 March 1983), was the last King of Italy. He reigned for 24 days, from 9 May 1946 to 2 June 1946, although he had been de facto head of state since 1944 and was nicknamed the May King (Italian: Re di Maggio).