Timeline of Leaders and Types of Government of Greece By AkisP Jan 13, 1822 President of the Executive, A. Mavrokordatos Period: Jan 13, 1822 to May 23, 1832 First Hellenic Republic May 10, 1823 President of the Executive, P. Mavromichalis Dec 31, 1823 President of the Executive, G. Kountouriotis Apr 26, 1826 President of the Executive, A. Zaimis Apr 14, 1827 Governor of Greece, Ioannis Kapodistrias Oct 9, 1831 Governor of Greece, Augustinos Kapodistrias May 27, 1832 King of Greece, Otto Period: May 27, 1832 to May 25, 1924 Kingdom of Greece May 30, 1863 King of the Hellenes, George I May 18, 1913 King of the Hellenes, Constantine I Period: May 25, 1924 to Oct 10, 1935 Second Hellenic Republic Period: Oct 10, 1935 to Mar 31, 1973 Kingdom of Greece Period: Jun 1, 1973 to Dec 17, 1974 Military Junta Republic Period: Dec 18, 1974 to Nov 30, 2020 Third Hellenic Republic
