Helena, comtesse de Noailles
Anna Maria Helena ("Cosvelt" or Coswell), comtesse de Noailles (ca. 1826 – 1908) was an English noblewoman. De Noailles married Charles-Antonin, second son of Antoine-Claude-Just de Noailles, duc de Mouchy and prince-duc de Poix in Paris, 25 April 1849. The marriage was short-lived, and their only child died at birth the following year.
She was the daughter of William Gordon Coesveldt and Anna Maria Baring, and the granddaughter of Henry Baring and Maria Matilda Baring. She was a foundress of the De Noailles School, Oxford. She financially supported Elizabeth Blackwell during her struggle to become the first female doctor in the United States.
- Annuaire de la noblesse de France, 1905; "Coswell" and "Caswell" are not included in Burke's Landed Gentry nor in G.E. Cokayne, The Complete Peerage.
- Amos, William (1985). The Originals: Who's Really Who in Fiction.
- Noailles genealogy
- Lloyd, John; Mitchinson, John (5 November 2009). The QI Book of the Dead. London: Faber and Faber. p. 168. ISBN 978-0-571-24490-4.
- Lot notes of the portrait of Anna Maria Helena, Comtesse de Noailles, Christie's
- Wojtczak, Helena. "Biographies". British Women's Emancipation since the Renaissance. Retrieved 2009-11-13.
- Lloyd, John; Mitchinson, John (5 November 2009). The QI Book of the Dead. London: Faber and Faber. pp. 167–171. ISBN 978-0-571-24490-4.