Mariana Alcoforado
Portuguese nun and writer

Sóror Mariana Alcoforado (Santa Maria da Feira, Beja, 22 April 1640 – Beja, 28 July 1723) was a Portuguese nun living in the convent of the Poor Clares (Convento de Nossa Senhora da Conceição, Convent of Our Lady of the Conception) in Beja, Portugal.
Debate continues as to whether Mariana was the real Portuguese author of the Letters of a Portuguese Nun (comprising five letters). Her purported love affair with the French officer Noël Bouton, Marquis de Chamilly and later Marshal of France, has made Beja famous in literary circles, mainly in Portugal and France.
Some literary scholars consider the letters a fictional work and ascribe their authorship to Gabriel-Joseph de Lavergne, comte de Guilleragues (1628–1684), although a real nun named Mariana Alcoforado indeed existed. In her recent book Letters of a Portuguese Nun: Uncovering the Mystery Behind a Seventeenth-Century Forbidden Love (2006), the author Myriam Cyr has attempted to reassert the attribution of the letters to the real Mariana Alcoforado.
Biography
Note: the following biography is based in large part on the letters and may contain, for that reason, fictionalized elements.
Mariana Alcoforado was born in Beja, daughter of landed proprietor of Alentejo Francisco da Cunha Alcoforado, born at Cortiços, Macedo de Cavaleiros, and first wife Leonor Mendes. She had three brothers: Baltasar Vaz Alcoforado, Miguel da Cunha Alcoforado and Francisco da Cunha Alcoforado, and two sisters: Anna Maria da Cunha Alcoforado, wife of Rui de Mello Lobo Freire, and Maria Peregrina Alcoforado. Beja was the chief garrison town of the province and the principal theatre of the twenty-eight years' war with Spain that followed the Portuguese Revolution of 1640. Mariana's widowed father, occupied with administrative and military commissions, placed her in the wealthy convent of the Conception for security and education.
Begin with the source’s own compact description: “Mariana Alcoforado” is portuguese nun and writer. The dossier treats that line as a proposition to test through Mariana, Alcoforado and Portuguese, not as a finished interpretation.
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Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Aug 26, 2026. The linked authority identifier is Q268325. VIAF identifies the subject as 64000733. The Library of Congress control number is n80162288. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1640, 1723, 1628 and 1684.
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This entry incorporates text from “Mariana Alcoforado” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.