Ivan VI vs Umberto II of Italy

Ivan VI was proclaimed emperor at the age of two months after the death of Anna of Russia, with Ernst Johann von Biron as regent. His accession was part of Anna's plan to secure the succession for her family line, but it immediately triggered a power struggle.

Ivan VI was deposed in a coup led by Elizabeth of Russia, who seized the throne. He was imprisoned in the Shlisselburg Fortress, where he spent the rest of his life in solitary confinement. His name was erased from official records, and he was referred to as the 'nameless prisoner'.

Ivan VI was killed by his guards during an attempted rescue by Lieutenant Vasily Mirovich. The rescue attempt aimed to restore him to the throne, but the guards followed orders to kill him if any escape was attempted. His death ended any possibility of a restoration.

Umberto II became King of Italy upon his father Victor Emmanuel III's abdication. His reign lasted only 34 days, from May 9 to June 12, 1946, during the constitutional referendum on the monarchy.

Umberto II accepted the results of the referendum that abolished the monarchy in favor of a republic. He went into exile in Portugal, never returning to Italy, ending the Savoy dynasty's rule.

Umberto II settled in Cascais, Portugal, after the monarchy was abolished. He lived there for the rest of his life, never abdicating his claim to the throne, and became a symbolic figure for Italian monarchists.