We have been told a dozen times the story of Julie de Lespinasse and her love-affairs, of Madame de Sta?l and the victims of her amatory experiments, of Lauzun, Fersen, and Lafayette; yet one of the greatest romances of this enthralling period, the love-story of the Chevalier de Boufflers and the Comtesse de Sabran, has been allowed to pass into oblivion. Theirs was the "grande passion" of the times, "they loved each other," says Monsieur Victor du...