Ion I. C. Brătianu was a Romanian politician who served as Prime Minister of Romania for five terms between 1909 and 1927. He was the leader of the National Liberal Party and played a key role in unifying Transylvania, Bukovina, and Bessarabia with Romania after World War I to form Greater Romania. Brătianu received an engineering diploma in France and worked as a railway engineer before entering politics in Romania in the 1890s. He held several ministerial positions and became the head of the National Liberal Party in 1909, holding the role of Prime Minister for multiple non-consecutive terms until his death in 1927.