What happened during Olga's regency in November 1920?
A peaceful transfer
Restoration of Constantine I
A political reform
A natural disaster
Answer
Constantine I was restored to the Greek throne in November 1920 after a plebiscite, following the end of World War I and the defeat of the pro-Allied government of Eleftherios Venizelos.
Imperial Intrigue: Unraveling the Story of Olga Constantinovna of Russia