In 1934, his grandfather, a keen mountaineer, died tragically in a climbing accident in the Meuse valley. His father then became king of the Belgians, under the name of Leopold III, and Baudouin thus became the heir to the crown. On this occasion, he received the title of Duke of Brabant.The following year, Baudouin's mother died in a car accident. Then World War II broke out. It is first experienced in a brief exodus. It begins in La Panne2 and continues in France, at the Château de Montal, then, after the French defeat, in Spain because King Leopold III wanted to remove him, with his brother Albert and his sister Joséphine-Charlotte, from the the German invasion of Belgium by evacuating them under the leadership of trusted people, but without Juffrouw (Mademoiselle), the governess to wh.