Emmuska Orczy (1865–1947)

Emma Magdalena Rosalia Maria Josephina Barbara, Baroness Orczy, was born in Hungary, the daughter of Baron Felix Orczy, a landed aristocrat and well-known composer and conductor and his wife Countess Emma Wass. She was educated in Brussels, Paris, and London, and exhibited her art work in the Royal Academy. In 1894, she married Montagu Barstow, a clergyman and artist, and they worked together as illustrators and jointly published an edition of Hungarian folk tales. Orczy became famous in 1905 with the publication of her novel The Scarlet Pimpernel (originally a play co-written with her husband). Its background of the French Revolution and swashbuckling hero, Sir Percy Blakeney, was to prove immensely popular. Sequel books followed and film and TV versions were later made. Baroness Orczy also wrote detective stories.
She inherited her family’s estate of Tarna-Ors in Hungary but continued to live in England until the end of World War I, when she and her husband settled in Monte Carlo.

Orczy, Emmuska Orczy, Baroness, 1865-1947 listed in "Other names" is the author as he/she is identified in the U.S. Library of Congress.