Some regard him as one of the most versatile, skilled and influential diplomats in European history, and some believe that he was a traitor, betraying in turn the Ancien Régime, the French Revolution, Napoleon, and the Restoration.
有人認為他是歐洲歷史上最多才多藝，熟練的和有影響力的外交官之一；另一部分人則認為他是叛徒，依次背叛了舊制度、法國大革命、拿破崙和波旁復辟。