/jp/ - Otaku Culture

Louise Julie was born the eldest daughter of Louis de Mailly, marquis de Nesle et de Mailly, Prince d'Orange (1689 - 1767), and his wife, 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. 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.