Jane Thorne

Jane Mary Thorne, baronne de Pierres (1821 – 1873) was a French courtier of American origin. She served as lady-in-waiting ("dame de Palais") to the empress of France, Eugénie de Montijo.
Life.
Jane Thorne was born in New York as the daughter of the American millionaire Colonel Herman Thorne and Jane Mary Jauncey. Her father was a well known figure in the American millionaire colony in Paris during the reign of Louis Philippe I. She married the French nobleman Eugène Stéphane de Pierres, baron de Pierres, on 7 June 1842. 
After the introduction of the Second Empire and the marriage of Emperor Napoleon III to Eugénie de Montijo, she was appointed to the Household of the new Empress. The ladies-in-waiting of the new Empress consisted of a "Grand-Maitresse" or senior lady-in-waiting, the Princesse d'Essling; a Dame d'honneur or deputy, the Duchesse de Bassano, who both attended court on grand functions; and six (later twelve) Dame du Palais, who were selected from among the acquaintances to the Empress prior to her marriage, and who alternated in pairs fulfilling the daily duties. Her husband was appointed equerry to the Empress. Both she and her spouse kept their positions from 1853 to 1870.
Jane Thorne was a personal friend of Eugenie from before her marriage to the emperor. She was referred to as a great beauty, but also as a shy, introverted neurotic. 
The empress was reportedly charmed by her American accent, but also irritated by her smoking, as she had the habit of blowing the smoke in to the empress' face. 
Empress Eugenie often spoke English with Jane Thorne, because she wanted to keep up her English. A contemporary said of her:
Jane Thorne was described as an excellent rider, and often accompanied the empress during riding or hunting, along with her husband, the equerry. 
A contemporary described her: 
Legacy.
She belongs to the ladies-in-waiting depicted with Eugenie in the famous painting "Empress Eugénie Surrounded by her Ladies in Waiting" by Franz Xaver Winterhalter from 1855.