Rosalie was rather plain, with irregular but expressive features, small eyes and a chin inclined to be square and decided; she was precocious for her age, but good-tempered, calm, and possessing great strength of character.

She married, in 1788, the Marquis de Grammont.

The anxieties and sorrows of life were already gathering round the girls thrust so early into the burden and heat of the day.

Adrienne, who with more intellectual gifts had also more human passion in her nature than her saintly elder sister, adored her husband, under whose shy, awkward manner she had discovered all sorts of excellent qualities, an enthusiastic love of liberty, talents and aspirations with which she ardently sympathised.

His devotion to herself was only interfered with by his political ideas; but it soon appeared that this interference was a very serious matter, for in 1777 he announced his intention of going to America to fight for the colonies then in rebellion against England.

Of course this spread consternation in the family of Noailles, usually so united that nothing of importance was ever done by them without a family council. And it was certainly irritating enough, that for no reason whatever except his own fancy he should desert his wife who adored him, who had one child and was about to have another, the management of his estates and all his duties in his own country, and exile himself for years to fight against a friendly nation and meddle in a quarrel with which neither he nor France had anything whatever to do. Besides, his example and influence had induced his brother-in-law, the Vicomte de Noailles, and his cousin, the Comte de Ségur, to adopt the same plans. All three young men declared they would go to America to fight for liberty.

The King heard of it, and formally forbade them to go, which, as far as de Noailles and de Ségur were concerned, put a stop to the plan for the present. But La Fayette was his own master and had plenty of money, so he made the excuse of going to England with his cousin, the Prince de Poix, and on his way back escaped in a Spanish ship and landed in Spain en route for America.

The Duc d’Ayen got a lettre de cachet from the King to stop him, but it was too late. Letters were sent by the family to say that Adrienne was very ill, and by this he was so far influenced that he set out on his journey homewards, but finding from other letters he received that she was in no danger at all, he turned back again.

Adrienne had never opposed his going. Divided between her grief at their separation, her sympathy with his dreams and ideas, and her dislike to oppose his wishes, she, though nearly heartbroken, pretended to be cheerful, stifled her tears, and forced herself to smile and laugh, though her love for him was such that she said she felt as if she would faint when he left her even for a short time, a few hours.