Ferdinand I (Ferdinand Viktor Albert Meinrad; 24 August 1865 – 20 July 1927), nicknamed Întregitorul ("the Unifier"), was King of Romania from 1914 until 1927.
Although a member of the Swabian branch of Germany's ruling House of Hohenzollern, Ferdinand sided against the Central Powers in World War I.
Thus, at the war’s end, Romania emerged as a much-enlarged kingdom, including Bessarabia, Bukovina and Transylvania, and Ferdinand was crowned king of "Greater Romania" in a grand ceremony in 1922.
He died from cancer in 1927, succeeded by his grandson Michael under a regency.