Charles III (Mircea Gregory Charles, Romanian: Mircea Grigore Carol) was King of the Romanians and Prince of Hohenzollern-Sigmaringen. He was born on 8 January 1920 in Bucharest, Romania, as the oldest son of Prince Charles of Romania and Hohenzollern-Sigmaringen (later King Charles II of the Romanians) and Zizi Lambrino. At the time of his birth, Charles's parents were already divorced, however, as he was born less than 300 days after the divorce, he was declared legitimate and put after his father in the line of succession to the Romanian throne. He became King of the Romanians upon the death of his father on 4 April 1953, and reigned for the rest of his life.