Carol II reigned as King of Romania from 8 June 1930 until his abdication on 6 September 1940.
Carol was the eldest son of Ferdinand I and became crown prince upon the death of his grand-uncle, King Carol I in 1914. He was the first of the Hohenzollern kings of Romania to be born in the country; both of his predecessors had been born in Germany and only came to Romania as adults. As such, he was the first member of the Romanian branch of the Hohenzollerns who spoke Romanian as his first language, and was also the first member of the royal family to be raised in the Orthodox faith.
He possessed a hedonistic personality that contributed to the controversies marring his reign, and his life was marked by numerous scandals, among them marriages to Zizi Lambrino and Princess Helen of Greece and Denmark, daughter of King Constantine I of Greece. His continued affairs with Magda Lupescu obliged him to renounce his succession rights in 1925 and leave the country. Princess Helen eventually divorced him in 1928.
King Ferdinand died in 1927 and Carol's five-year-old son ascended the throne as Michael I.