Louise Élisabeth de Bourbon

At the age of seventeen, it was suggested by her ambitious mother that she marry one of the king's grandsons, the young Duke of Berry. The marriage, however, did not take place due to the machinations of Louise Élisabeth's aunt, the Duchess of Orléans, who wanted the Duke for her own daughter, Marie Louise Élisabeth d'Orléans.

On 9 July 1713, Louise Élisabeth married her first cousin Louis Armand de Bourbon, Prince of Conti, at Versailles. Her husband, who was three years younger than his bride, had become the Prince of Conti in 1709 upon the early death of his father François Louis, Prince of Conti. His mother was the pious Marie Thérèse de Bourbon, eldest granddaughter of Le Grand Condé.

Her marriage was part of a double wedding between the Condé and Conti branches of the House of Bourbon; Louise Élisabeth's older brother Louis Henri de Bourbon married Mademoiselle de Conti, Marie Anne de Bourbon-Conti. The ceremony took place in the newly built Royal Chapel of Versailles.

Present at the wedding were her mother, paternal grandmother the Princess Palatine Anne, Dowager Princess of Condé; Charles, Duke of Berry, and his wife Marie Louise Élisabeth d'Orléans, her uncles Louis-Auguste de Bourbon, duc du Maine, Louis-Alexandre de Bourbon, comte de Toulouse and Philippe II, Duke of Orléans, as well as her aunts Françoise-Marie de Bourbon, Duchess of Orléans, and the two widowed Princesses of Conti, Marie Anne de Bourbon and Marie Thérèse de Bourbon.[2]

In August 1716, at the age of twenty-two, Louise Élisabeth contracted smallpox from her husband, whom she had been nursing through his illness. A year later she gave birth to her first child. She and her husband had five children.

The Princess Palatine Elizabeth Charlotte, Duchess of Orléans (Madame), sister in law of Louis XIV and famous memoir writer, wrote of Louise Élisabeth circa 1719:

She is a person full of charms, and a striking proof that grace is preferable to beauty. When she chooses to make herself agreeable, it is impossible to resist her. Her manners are most fascinating; she is full of gentleness, never displaying the least ill-humour, and always saying something kind and obliging. It is greatly to be regretted that she is not in the society of more virtuous persons, for she is herself naturally very good; but she is spoiled by bad company. She has an ugly fool for her husband, who has been badly brought up; and the examples which are constantly before her eyes are so pernicious that they have corrupted her and made her careless of her reputation. Her amiable, unaffected manners are highly delightful to foreigners. Among others, some Bavarians have fallen in love with her, as well as the Prince Ragotzky; but she disgusted him with her coquetry.

..she does not love her husband, and cannot do so, no less on account of his ugly person than for his bad temper. It is not only his face that is hideous, but his whole person is frightful and deformed. She terrified him by placing some muskets and swords near her bed, and assuring him that if he came there again with his pistols charged, she would take the gun and fire upon him, and if she missed, she would fall upon him with the sword. Since this time he has left off carrying his pistols.[3]

Louise Élisabeth had several extramarital affairs, such as her liaison with the handsome Philippe Charles de La Fare.[4] These infidelities incensed her husband, whose jealousy made him turn physically violent against his wife. He is reported to have hurt his wife to the point that she had to see a doctor on two separate occasions. After a particularly dramatic scene in the Conti household, the princess refused to live with her husband anymore and took refuge with her mother. Later she fled to a convent. According to Saint-Simon, she once said of her husband:

he could not make a prince du sang without her, while she could make one without him.[5]

The first years of her marriage were full of court cases at the Parlement de Paris against her husband due to his violent temper and her desire to leave him.[6] In 1725, she consented to return to the Prince of Conti, who had her confined to the Château de l'Isle-Adam.[7] She was able later, however, to convince him to allow her to return to Paris in order to give birth to her daughter, Louise Henriette. Her husband died a year later.

Due to his open support of the Scottish economist John Law who had implemented the introduction of paper money to France during the Régence of the young King Louis XV of France, her husband had made a fortune.

A posthumous painting of Louise Élisabeth

Her husband died in 1727 at the Hôtel de Conti (quai Conti) in Paris due to a "chest swelling". Louise Élisabeth was known at court either as Madame la Princesse de Conti troisième or Madame la Princesse de Conti dernière douairière, in order to distinguish Louise Élisabeth from the other two widowed princesses of Conti still alive:

• Marie Anne de Bourbon (1666–1739), the legitimised daughter of Louis XIV and Louise de La Vallière and wife of Louis Armand I de Bourbon, Prince of Conti. She was known as Madame la Princesse de Conti première douairière as she was the first to be widowed in 1685. Her husband's Conti title fell upon his younger brother, François de Bourbon, Prince of Conti.
• Marie Thérèse de Bourbon (1666–1732), the wife of François Louis de Bourbon, Prince of Conti and Louise Élisabeth's mother-in-law. She was known as Madame la Princesse de Conti seconde douairière after losing her husband in 1709.

The Hôtel de Conti (rue Saint-Dominique) on the 1739 Turgot map of Paris

In 1733 Louise Élisabeth purchased a townhouse with an extensive garden on the rue Saint-Dominique in Paris from Françoise de Mailly (widow of Louis Phélypeaux, Marquis de La Vrillière), and hired the architect Nicolas Simonnet to redecorate the interiors. At that time it also became known as the Hôtel de Conti.[8] It is shown on the 1739 Turgot map of Paris as "H. de Conty".

The Dowager Princess and her aunt the Dowager Duchess of Orléans joined forces in 1743 to arrange the marriage of her son to her first cousin, Louise Diane d'Orléans, and that of her daughter to Louise Diane's nephew, the heir to the House of Orléans. This helped to somewhat smooth over the century-long feud between the House of Condé and House of Orléans, a feud fueled by the animosity between Louise Élisabeth's mother and aunt, the Princess of Condé and the Duchess of Orléans, both legitimised daughters of Louis XIV and Madame de Montespan.

After the death of her mother in June 1743, she acquired the château de Louveciennes, which later reverted to the Crown. Louis XV in turn gave it to the successor of Madame de Pompadour, Madame du Barry. The Dowager Princess of Conti later also acquired the château de Voisins.

Later, in 1746, the Dowager Princess was asked by Louis XV to present his new mistress, the future Madame de Pompadour, at court. She attended the ball at Versailles in honour of the marriage of Infanta Maria Teresa Rafaela of Spain to Louis, Dauphin of France in 1745. According to Nancy Mitford's Madame de Pompadour book, the proud Dowager Princess was annoyed at no one recognising her.[9] She obliged the king in the hope that he would help her escape her debts, a tactic which worked.

Just before her death, the princess gave her townhouse on the rue Saint-Dominique in Paris to her son, and she died there at the age of eighty-one, on 27 May 1775. She was buried at the Église Saint-Sulpice in Paris. She had just sold the Hôtel de Conti (rue Saint-Dominique) to her grandson Louis François de Bourbon-Conti who moved in in the next year.[10]