The following have been the five monarchs of Romania since the country was created in the mid-1800s.

• Prince Alexander Ion Cusa
  elected Prince of Romania in 1862 and acceded to throne February 5, 1862;
  forced to flee the country February 23, 1866
  died in in 18

• Prince, later King Carol (Charles) I, second son of Karl Anton Fürst von Hohenzollern-Sigmaringen
  born April 4, 1839, at Castle Sigmaringen, Germany;
  elected Prince of Romania in 1861; proclaimed King of Romania in 1871
  died October 10, 1914, at Castle Peles, Sinaia, Romania.
• King Ferdinand I, son of Leopold, the older brother of King Carol I
  born August 24, 1865, at Castle Sigmaringen, Germany;
  acceded in 1916, when his uncle King Carol I died;
  died July 20, 1927, at Castle Peles, Sinaia, Romania.
• King Carol (Charles) II, son of King Ferdinand I
  born October 16, 1893, at Castle Peles, Sinaia, Romania;
  became King in 1930, while claiming actually to have acceded in 1927, when his father died;
  forced into exile in 1940 by Marshall Ion Antonescu;
  died April 4, 1953, in Estoril, Portugal..
• King Mihai (Michael) I, son of King Carol II
  born October 25, 1921 at Castle Peles, Sinaia, Romania;
  acceded in 1940, when his father went into exile;
  forced by the Soviet Union to abdicate on December 30, 1947;
  still alive in 1997, living in Switzerland