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Louise Julie de Mailly

Mistress of louis xv of france
The basics
Date of birth
Date of death 1751 Paris, Île-de-France, France
Father: Louis III de Mailly-Nesle
Authority VIAF id Library of congress id
The details

Louise Julie de Mailly-Nesle, comtesse de Mailly (1710–1751) was the eldest of the five famous de Nesle sisters, four of whom would become the mistress of King Louis XV of France. She was his mistress from 1732 until 1742.

Early life, family and marriage

Louise Julie was born the eldest daughter of Louis de Mailly, marquis de Nesle et de Mailly, Prince d'Orange (1689 - 1767), and Armande Félice de La Porte Mazarin (1691 - 1729). Her parents had been married in 1709. Her mother was the daughter of Paul Jules de La Porte, duc Mazarin et de La Meilleraye (1666 - 1731), the son of the famous adventuress, Hortense Mancini, the niece of Cardinal Mazarin. Her mother was an lady-in-waiting in service to the queen from 1725, and her father reportedly "wasted his substance on actresses and the capacious requirements of Court life".

Louise Julie had four younger full sisters:

  • Pauline Félicité de Mailly, Mademoiselle de Nesle, marquise de Vintimille (1712 - 1741),
  • Diane Adélaïde de Mailly, Mademoiselle de Montcavrel, duchesse de Lauraguais (1714 - 1769),
  • Hortense Félicité de Mailly, Mademoiselle de Chalon, marquise de Flavacourt (1715 - 1763).
  • Marie Anne de Mailly, Mademoiselle de Monchy, marquise de La Tournelle, duchesse de Châteauroux (1717 - 1744).

The only one of the de Nesle sisters not to become one of Louis XV's mistresses was the marquise de Flavacourt. Louise Julie was the first sister to attract the king, but it was Marie Anne who was the most successful in manipulating him and becoming politically powerful.

Louise Julie also had a younger half-sister, Henriette de Bourbon (1725 - 1780), Mademoiselle de Verneuil, from her mother's relationship with the duc de Bourbon, the chief minister of Louis XV from 1723 to 1726.

In her youth, Louise Julie was known as Mademoiselle de Mailly. On 31 May 1726, she married her cousin, Louis Alexandre de Mailly, comte de Mailly (1694-1743). The marriage was forced upon her against her will and was reportedly unhappy.

Mistress to Louis XV

"Fair Unknown"

In 1729, her mother died and Louise Julie replaced her as lady-in-waiting, Dame du Palais, to the queen.

At this point in time, king Louis XV, who suffered from restlessness and needed to be entertained, something the queen was unable to do, became more inclined to listen when queen Marie was unfavorable compared to other women, and Cardinal Fleury, who wished to prevent the queen from acquiring any political influence over the king, favored the idea of the king taking a mistress as long as she was apolitical and did not pose a threat to his own position as the de facto ruler of France.

Louise Julie fell genuinely in love with Louis and patiently courted his interest; reportedly, years passed before they finally kissed, and throughout their relationship, she remained “the bolder and more enticing of the two.” In 1732 or 1733, Louise Julie finally caught the attention of the king, and became his mistress with the approval of her spouse.

Louise Julie de Mailly was described as a thin beauty, with a perfect oval face and dark eyes with marked eyebrows, which gave her a “provocative and sensuous charm”. She new how to adjust the fashion to suit her, designed her own “piquant and suggestive” negligees, and often wore her diamonds in her carefully dressed black hair – she was, however, not graceful but rather clumsy in her movements. As a person, she was described as good-tempered, witty and entertaining at social occasions, without being so at the expense of others, and as a loyal and devoted friend and a passionate and sincere lover, ready to sacrifice herself to make those she cared for happy. She enjoyed pleasure and social life but was also described as generous and sympathetic to others. She completely lacked ambition and interest in politics, and genuinely “wanted nothing but the love of Louis XV, whom she adored with all the strength of her passionate nature”. Louis XV reportedly appreciated her adoration and love for him and was satisfied with the fact that she was afraid of Cardinal Fleury and never tried to interfere in politics.

Although she became the king's mistress in 1732, de Mailly was not officially recognized as his maîtresse en titre until 1738. During these years, the relationship was not official and her identity was unknown, and she was known at court as the Fair Unknown. Queen Marie unsuccessfully tried to find out the mistress was and displayed her displeasure over the state of affairs, but the adultery had the support of Cardinal Fleury, because de Mailly was not interested in politics, and after the first years of adultery, Marie resigned to it.

Official mistress

In 1737, the private relationship between the king and queen discontinued as the queen ended their sexual relations after her last childbirth, signifying the final end of the queen's influence over the king and the shift of the courtiers toward he mistress of the king. There were speculations at court as to the identity of the king’s mistress, but it was only known that she visited him in his private apartments at night, wearing a hood over her face so as not to be recognized if she should meet someone in the corridors on her way to and from his room. In order to find out who she was, in the summer of 1738 Gabriel Bicheher stopped Mailly one night on her way to the king’s bedroom and knocked of her hood, exposing her face to two of the queen’s ladies-in-waiting, who was waited nearby, and who spread the word through the court the following day, exposing the king’s affair and the identity of his mistress. This was likely done on the initiative of the courtiers who wished to know an alternative channel to the king, after the queen had finally lost his influence upon him.

Following this incident, on 14 July 1738 the king “declared his passion” and acknowledged Louise Julie de Mailly as his official mistress by eating supper with her before his court at the Château de Compiègne, and after this, she was given rooms next to the king's apartments and appeared as his hostess on parties in his private apartments of the Royal castles at Versailles, Choisy and La Muette. The queen regarded Louise Julie as the most hurtful of all the lovers of her spouse because she was the first one, but she grew accustomed to her, and she did not dislike her as a person as much as she would her sister and successor Marie Anne.

Louise Julie de Mailly was widely celebrated at court after she had been introduced as official royal mistress, but the new official character of their relationship between her and the king evidently put a great deal of strain upon it. Her new public position as official mistress exposed her to public criticism, and Louis XV reportedly felt humiliated when some regarded her to be insufficiently beautiful for her role. She became tormented by jealousy and incidents were noted when they argued, such as once, when she lost at cards and remarked to the king: “It is not to be wondered at, with you here.” The king reacted badly at the fact that she was approached by petitioners who expected her to be able to influence him, and when she showed him the letter from a petitioner, Monsieur de Luc, who ended his petition with: “It needs but one word from the beautiful mouth of a lovely lady like yourself and the business is done,” the humiliated king exclaimed: “A beautiful mouth, indeed! I scarcely think you can plume yourself on that!” Louise Julie did not, however, use her new position at court to enrich herself or to interfere in politics, and was in fact soon known to never involve herself in any political issues or advance the ambitions of petitioners.

Louise Julie was devoted to her family, and it was said that she was "a loving, sincere little creature with all the qualities of an easy dupe, and she was happy to Introduce her sisters at Court for the sole reason that it gave them pleasure". She invited all her sisters to court on different occasions and helped them to establish themselves there socially. In 1739, Madame de Mailly received a letter from her younger sister Pauline-Félicité requesting to be invited to court. Madame de Mailly granted her sister's wish, but upon her arrival at court, Pauline-Félicité seduced the king and became his mistress.

While Madame de Mailly remained as the official mistress, the king fell in love with Pauline-Félicité, arranged for her to marry the marquis de Vintimille to enable her to stay at court, and gave her the castle of Choisy-le-Roi as a gift. Madame de Vintimille quickly became pregnant by the king, and she died giving birth to his illegitimate son, Louis, the duc de Luc, who looked so much like the king that he was called Demi-Louis ('Small Louis'). Madame de Vintimille's remains stood in Lit de parade in the town of Versailles, but during the night, a mob broke in and mutilated the body of "the king's whore". The king and Madame de Mailly were both devastated by the death of Madame de Vintimille and shocked by the mutilation of her body. In her despair, Madame de Mailly is said to have performed a Catholic rite of penitence by washing the feet of the poor.

Carle van Loo - The Three Graces, 1765. Traditionally, the Nesle Sisters was assumed to be the models of this painting.

After this, her recently widowed youngest sister, Marie Anne de Mailly, asked her for an invitation to court, and successfully relied upon her family devotion to help her establish herself socially at court, where she made a great social success upon her introduction with her beauty and charm. Marie Anne was described as "magnificently beautiful", dignified and graceful, with fair hair, "a complexion so white and pure that it glowed", large blue eyes and red lips with a "childlike smile", and to her behavior as a charming wit who frequently used irony.


Louise Julie de Mailly was known to be so in love with the king that she "could do nothing without asking his advice" and never involved herself with state affairs. This made her acceptable to Cardinal Fleury, but also a disappointment to the court nobility, who wished for the king to have a mistress who could influence the king against the pacifist policy of Fleury and engage in warfare, which the ideals of nobility regarded as necessary for national dignity and glory. Among the war-favoring aristocrats were the kings friends, the manipulative duc de Richelieu, and Charles, Prince of Soubise, who supported the idea to introduce a new mistress to the king, who could be used to oppose the influence of the Cardinal and his peace policy and push France to engage in war, and they viewed Louise Julie's sister Marie Anne de Mailly, marquise de La Tournelle, as a suitable candidate for this purpose.

At a masked ball on Shrove Tuesday, 1742, Richelieu led Marie Anne up to the king and introduced them. She herself, however, at first rejected the royal advances. She already had a lover, the young duc d'Agénois, and was not inclined to give him up for the king's sake. As a result, Louis conspired with Richelieu, who was d'Agénois's uncle, to rid himself of the young suitor. Richelieu was quite anxious to do anything to bring about a liaison between the king and Marie Anne de La Tournelle because he knew Louise Julie de Mailly did not view him in a kindly light. The result was that Louis, in imitation of the biblical David, sent his rival to fight the Austrians in Italy. Here, more fortunate than the husband of Bathsheba, the duc d'Agénois was only wounded, and returned to the court in glory.

Louis was in despair, but Richelieu, was not one to lightly accept defeat. He sent his nephew to Languedoc, where a woman had been instructed to seduce him. This she did most effectively; letters of a very passionate nature were exchanged; the lady dispatched those which she received to Richelieu, and in due course they were brought to the notice of Marie Anne de La Tournelle, who, furious at her young duke's deceitfulness, turned her attentions to the king and agreed to the suggestion of Richeliu and Soubise.

The fall of Louise Julie de Mailly was orchestrated by means of depriving her of her official office as lady-in-waiting, which was her formal justification for participating in court life and without which she would not formally be allowed to live at court. On 13 September 1742, the duchess de Villars, previously a dame du palais, was promoted to dame d'atour, and there was thereby a vacancy among the ladies-in-waiting of the queen. The recently deceased Françoise de Mailly, duchesse de Mazarin, a personal friend of the queen, had shortly before her death wished for a post of her favorite step-granddaughter Marie Anne de Mailly, in order to embarrass Louise Julie de Mailly, whom she detested, and the queen herself asked for the vacant place to be given to Marie Anne de Mailly, and by the mediation of d'Argenson, Marie Anne secured the king's approval for her candidacy to this office as dame du palais. In parallel, Marie Anne persuaded Louise Julie to write to Cardinal Fleury and resign her own post as dame de palais in favor of their sister Flavaucourt by convincing her that the king wished to favor her sisters for the sake of Louise Julie. She agreed, though she resigned on condition that she be compensated with the post of dame d'atours at the court of the next dauphine. When Cardinal Fleury received her request of resignation, he called upon her and warned her about the danger it would mean to her position, and Jean-Frédéric Phélypeaux, Count of Maurepas warned her: “Madame, you do not know your sister, de la Tournelle; when you hand over your office to her, you may expect your dismissal from Court”. Louise Julie, however, refused to suspect her sisters for plotting against her or to retract her resignation, and after her resignation was accepted, she accompanied her sisters Marie Anne de Mailly and Flavaucourt to the king and queen to offer the gratitude of herself and her sisters for their new appointments. Although the queen retracted her approval, Marie Anne was appointed to the position on 19 September, and the next day, Cardinal Fleury refused Louise Julie's compensatory future post as dame d'atours of the dauphine. Marie Anne had thereby secured a place for herself at court, and deprived Louise Julie of hers.

After her resignation as lady-in-waiting, the court stopped giving Louise Julie attention and instead turned it to her sister and expected successor Marie Anne de Mailly, whom Louis XV himself started to court openly. However, Marie Anne de Mailly was not in love with Louis, and she presented him with conditions before she agreed to consent to be his mistress. She refused intercourse until he had proved his love by agreeing to provide her with the title of Duchess; a personal income to secure her future; a house "as sumptuous as Madame de Montespan’s had been", where she would be able to entertain the king in accordance with royal standards; an assurance than any children born of the union would be provided for and legitimized; to be properly courted before consent, and the dismissal of her sister, his official mistress, from court, and she herself officially acknowledged in her place.

This was a new experience for the king, whose previous sexual partners had never demanded that he court them in any way or made any terms, but he was successfully stimulated to court her by Richelieu, who compared her favorably to his previous lover and presented Marie Anne as a royal mistress to be proud of. The king's courting of the reluctant Marie Anne before the royal court attracted attention, and a song was hummed at court and in town, portraying the lovesick king and his attempts to convince the cold Marie Anne to become his mistress. The king reportedly fell passionately in love with her, but she was refused to answer his letters and acted coldly. During his courting of Marie Anne, he reportedly treated Louise Julie more and more coldly, sitting in silence through their meals, taking to her only about his hopes to seduce her sister, causing her to cry. Repeatedly, scenes occurred during which he asked Louise Julie to leave court, after which she fell to his feet and begged him to be allowed to stay, upon which he would allow her a couple of days more.

Finally, Louis XV agreed to the list of demands of Marie Anne, and on 2 November 1742, he concluded the first demand and evicted Louise Julie de Mailly from court by having the furniture removed from her rooms next to the king's apartments on the pretext that hey had been had been reserved for her sister Flavaucourt. She manged to convince the king to grant her another night through an appeal at supper, but the next day, she refused to leave. Richelieu visited her and advised her to leave out of respect for her own dignity and as a duty to her king, and when she consented, Richelieu informed the king that Marie Anne would agree to meet him that very night provided that it would be a secret, and escorted him in disguise to the house of Richelieu for the meeting. However, Louise Julie would still not leave, and Marie Anne was discontent at the king's patience. Louise Julie successfully asked for a last dinner with the king, and when she cried upon departure, he embraced her and promised to meet her a couple of days after her departure.

Louise Julie de Mailly finally left Versailles in the carriage of her loyal personal friend Marie Victoire de Noailles, who offered her refuge.

Marie Anne forced the king to retract his promise to meet with Louise Julie, and Louise Julie retired to a convent, where she was to become quite religious.

Depiction in Fiction

Louise, as well as her sisters, has a role in the novel "Louis the Well Beloved" (1959), the first in a trilogy about the lives of Louis XV and Louis XVI by English author Jean Plaidy.

Louise Julie is one of the central characters in Sally Christie's The Sisters of Versailles (Simon&Schuster 2015), a novel about Louis XV and the notorious Mailly-Nesle sisters.

The contents of this page are sourced from a Wikipedia article. The contents are available under the CC BY-SA 4.0 license.
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