Timeline of Leaders and Types of Government of Greece

President of the Executive, A. Mavrokordatos

Jan 13, 1822

First Hellenic Republic

Period: Jan 13, 1822 to May 23, 1832

President of the Executive, P. Mavromichalis

May 10, 1823

President of the Executive, G. Kountouriotis

Dec 31, 1823

President of the Executive, A. Zaimis

Apr 26, 1826

Governor of Greece, Ioannis Kapodistrias

Apr 14, 1827

Governor of Greece, Augustinos Kapodistrias

Oct 9, 1831

King of Greece, Otto

May 27, 1832

Kingdom of Greece

Period: May 27, 1832 to May 25, 1924

King of the Hellenes, George I

May 30, 1863

King of the Hellenes, Constantine I

May 18, 1913

Second Hellenic Republic

Period: May 25, 1924 to Oct 10, 1935

Kingdom of Greece

Period: Oct 10, 1935 to Mar 31, 1973

Military Junta Republic

Period: Jun 1, 1973 to Dec 17, 1974

Third Hellenic Republic

Period: Dec 18, 1974 to Nov 30, 2020