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The list includes all individuals who were first in line to the throne of Italy, either as heir apparent or as heir presumptive, since 1861. Those who actually succeeded to the throne are shown in bold.
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Standard and Arms of the Prince of Piedmont
Heirs to the throne
edit| Monarch | Heir | Relationship to monarch |
Became heir (Date; Reason) |
Ceased to be heir (Date; Reason) |
Next in line of succession |
|---|---|---|---|---|---|
| Vittorio Emanuele II | Prince Umberto, Prince of Piedmont | Son | 17 March 1861 Father proclaimed king of Italy |
9 January 1878 Father died, became king |
Prince Amedeo, Duke of Aosta, 1861–1869, brother |
| Prince Vittorio Emanuele, Prince of Naples, 1869–1878, son | |||||
| Umberto I | Prince Vittorio Emanuele, Prince of Naples | Son | 9 January 1878 Father became king |
29 July 1900 Father assassinated, became king |
Prince Amedeo, Duke of Aosta, 1878–1890, uncle |
| Prince Emanuele Filiberto, Duke of Aosta, 1890–1900, first cousin | |||||
| Vittorio Emanuele III | Prince Emanuele Filiberto, Duke of Aosta | First cousin | 29 July 1900 First cousin became king |
15 September 1904 Son born to king |
Prince Amedeo, Duke of Apulia, son |
| Prince Umberto, Prince of Piedmont | Son | 15 September 1904 Born |
9 May 1946 Father abdicated, became king |
Prince Emanuele Filiberto, Duke of Aosta, 1904–1931, first cousin once removed | |
| Prince Amedeo, Duke of Aosta, 1931–1937, second cousin | |||||
| Prince Vittorio Emanuele, Prince of Naples, 1937–1946, son | |||||
| Umberto II | Prince Vittorio Emanuele, Prince of Naples | Son | 9 May 1946 Father became king |
12 June 1946 Monarchy abolished by referendum |
Prince Aimone, Duke of Aosta, second cousin once removed |