A referendum on remaining a republic was held in Greece on 13 April 1924. It followed the catastrophic outcome of the Asia Minor Campaign. As a result of the military defeat, King Constantine I was forced to abdicate (27 September 1922) in favor of his son, King George II. King George himself later went into exile in the Kingdom of Romania, the home of his wife Elisabeth of Romania, while the government debated the fate of the monarchy. Ultimately, a referendum was called. This followed the restoration of Constantine I in 1920 and reflected the see-saw nature of the Greek electorate and the then-present dominance of the Liberal and Republican Venizelists in Greek politics and abolished the crown.
In the lead up to the referendum, Prime Minister Alexandros Papanastasiou favoured the vote for the Republic, while Venizelos kept a neutral stance. Nonetheless, on 25 March 1924 the Second Hellenic Republic was proclaimed by parliament.
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Text from the Wikipedia article “1924 Greek republic referendum”, available under CC BY-SA 4.0.