Romania
Dacian-Hellenic, Northeast Balkins
-Walachia and Moldavia merge to form Romania
Principality of Romania, under Ottoman (1859-1861)
Cuza House
-Alexander Ion Cuza (1859-1866)
Kingdom of Romania
Hohernzollern House
-Carol I (1866-1914)
-Ferdinand (1914-1927)
-Mihai (1927-1930)
-Carol II (1930-1940)
-Mihai (Restored: 1940-1947)
Republic of Romania
Presidency
-Constantin Parhon (1948-1952)
-Petru Groza (1952-1958)
-Ion Georghe Maurer (1958-1961)
-Georghe Georghiu-Dej (1961-1965)
-Chivu Stoica (1965-1967)
-Nicolae Ceausescu (1967-1989)
-Ion Illiescu (1989-1996)
-Emil Constantinescu (1996-2000)
-Ion Illiescu (Reelected: 2000- )