Ferdinand I of Romania was the King of Romania from 1914 until his death in 1927. Born on August 24, 1865, he was a member of the Hohenzollern-Sigmaringen dynasty. Ferdinand played a significant role during World War I, leading Romania into the conflict on the side of the Allies in 1916. His reign saw the unification of Transylvania with Romania in 1920, which was a major achievement for the country. Ferdinand was known for his dedication to the Romanian people and his efforts to modernize the nation. He supported various social and economic reforms, aiming to improve the living conditions of his subjects. His reign is often remembered for the challenges faced during the war and the subsequent changes in Romania's borders and governance.