| 
    Regents of Romania Romania was created when the Ottoman vassal states of 
    Moldavia and 
    Wallachia were united 1861, they had already been in a personal union since 
    1859. Full independence from the Ottoman Empire was achieved 1878 and two 
    years later was Romania recognised as a kingdom, the coronation of prince Karol 
    to king occurred in 1881. Romania participated in the First World War and won
    Transylvania and Bessarabia, which meant that all lands populated by Romanians
    was then a part of Romania. But Bessarabia was later lost to the Soviet Union
    during the Second World War. House of Cuza 
      
      
        
          | 1861-1866 | Alexandru Ioan Cuza (prince) |  
          | House of Hohenzollern
 
 |  
          | 1866-1914 1914-1927
 1927-1930
 1930-1940
 1940-1947
 1947-
 | Carol I (  = 1881) Ferdinand I
 Mihai I
 Carol II
 Mihai I (restored)
 Republic
 |  
          | Communist 
          Rule
 Peoples 
          republic of 
          Romania 1947-66
 Socialist republic of Romania 1966-89
 
 |  
          | 1947-1952 1952-1958
 1958-1961
 1961-1965
 1965-1967
 1967-1989
 
          1989- | Constantin Ion Parhon Petru Groza
 Ion Gheorghe Maurer
 Gheorghe Gheorghiu-Dej
 Chivu Stoica
 Nicolae Ceauşescu
 
          Democratic 
          governments |  |