Overview
{{Infobox former country
| native_name =
| conventional_long_name = United Principalities of Moldavia and Wallachia (1859–1862)Romanian United Principalities (1862–1866)Romania (1866–1881)
| common_name = United Principalities
| status = Vassal
| empire = Ottoman Empire
| status_text = Vassal state of the Ottoman Empire (1859–1877)
| era =
| year_start = 1859
| year_end = 1881
| date_start = 24 January
| event_start = Union between Moldavia and Wallachia
| event1 = First common government
| date_event1 = 22 January 1862
| event2 = First Constitution
| date_event2 = 13 July 1866
| event3 = Independence from the Ottoman Empire
| date_event3 = 9 May 1877
| date_end = 14 March
| event_end = Kingdom established
| p1 = Moldavia
| flag_p1 = Flag of Moldavia in 1831.svg
| p2 = Wallachia
| flag_p2 = Civil ensign of the Principality of Wallachia, 1834-2.png
| p3 = Northern Dobruja
| flag_p3 = Flag of the Ottoman Empire.svg
| s1 = Kingdom of Romania
| flag_s1 = Flag of Romania.svg
| s2 = Bessarabia Governorate
| flag_s2 = Flag of the Russian Empire (black-yellow-white).svg
| image_flag = Flag of the United Principalities of Wallachia and Moldavia (1859 - 1862).svg
| alt_flag = Flag used 1862-1866
| alt_flag2 = Flag used 1866-1881
| flag = Flag of Romania
| flag_type = Flag
| image_coat = Principality of Romania - 1872 CoA.svg
| coa_size = 100
| image_map = Romania 1859-1878.png
| image_map_caption = The United Principalities (Romania) 1859–1878, shown in light beige
| national_motto =
| national_anthem = {{ubl|"Hora Unirii'"|"Hora of the Union"|(popular, unofficial)}}
| common_languages =
| religion = Romanian Orthodox, Catholicism, Judaism, Reformed Church
| capital =
| government_type =
| leader1 = Alexandru Ioan Cuza
| leader2 = Carol I
| year_leader1 = 1859–1866
| year_leader2 = 1866–1881
| title_leader = Domnitor (Prince)
From Wikipedia (CC BY-SA 4.0).