Other disguises also came in useful. On the run in occupied Bordeaux he dressed as a nun. In later life he helped Maurice Papon to flee to Switzerland.
Robert Jean-Marie de La Rochefoucauld was born in Paris on September 16 1923, one of 10 children of an aristocratic family which lived in old-fashioned splendour on Avenue de la Bourdonnais, in the shadow of the Eiffel Tower. An ancestor was François de La Rochefoucauld, famous for his maxims. Robert’s mother (née Wendel) was daughter of the Duke of Maillé. His father’s family retained a private carriage which was hitched on to trains during rail journeys.
Considered a sickly child, Robert was sent to a succession of private schools for the jeunesse dorée in Switzerland and Austria where, in 1938, he was taken on a school trip to Berchtesgaden, Hitler’s Alpine retreat. When Hitler’s convoy drew up, the Fuhrer approached and patted Robert on the cheek affectionately. It was, La Rochefoucauld later recalled, a dream come true for his 15 year-old self. Hitler was then the great statesman of Europe; young Robert and his schoolmates had attached swastikas to their bicycles in admiration.