Baudouin (USboʊˈdwæ̃; 7 September 1930 – 31 July 1993), was King of the Belgians from 17 July 1951 until his death in 1993. He was the last Belgian king to be sovereign of the Congo.
Baudouin was the elder son of King Leopold III (1901–1983) and his first wife, Princess Astrid of Sweden (1905–1935). Because he and his wife, Queen Fabiola, had no children, at Baudouin's death the crown passed to his younger brother, King Albert II.
Prince Baudouin was born on 7 September 1930 in the Château du Stuyvenberg, near Laeken, Brussels, the elder son and second child of Prince Leopold, then Duke of Brabant, and his first wife, Princess Astrid of Sweden. In 1934, Baudouin's grandfather King Albert I of Belgium was killed in a rock climbing accident; Leopold became king and the three-year-old Baudouin became Duke of Brabant as heir apparent to the throne. Baudouin's mother died in 1935 in an automobile accident, when Baudouin was nearly five. Later, in 1941, his father remarried to Mary Lilian Baels (later became Princess of Réthy). This marriage produced three more children: Prince Alexandre, Princess Marie-Christine (who is also Baudouin's goddaughter) and Princess Marie-Esméralda. Baudouin and his siblings had a close relationship with their stepmother and they called her "Mother". His education began at the age of seven, his tutors taught him half his lessons in French and half in Dutch. He frequently accompanied his father to parades and ceremonies and became well known to the public.
Despite maintaining strict neutrality during the opening months of the Second World War, on 10 May 1940, Belgium was invaded by Nazi Germany. Baudouin, his elder sister Princess Josephine-Charlotte and his younger brother Prince Albert, were immediately sent to France for safety and then to Spain. The Belgian Army, assisted by the French and British, conducted a defensive campaign lasting 18 days, but Leopold, who had taken personal command, surrendered unconditionally on 28 May.