-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-         )