According to her Wikipedia article, "She was said to resemble her father and was his favourite daughter. She was put in the care of Marie Isabelle de Rohan, duchesse de Tallard. Élisabeth was raised at Versailles with her twin sister, Henriette, their younger sisters Marie-Louise, Marie Adélaïde, and their brother, the Dauphin.
She was known to be very intelligent and a quick learner. She and her brother were the only ones who got married, and only Adélaïde and Victoire lived to see the fall of the Ancien Régime under the reign of their nephew, Louis XVI.
Unlike her younger sisters Sophie and Victoire, who were raised in the strict environment of the royal Abbey at Fontevraud, Élisabeth grew up within a loving family circle at Versailles…
...Her prospective engagement to the Infante Philip of Spain was announced at court in February 1739, when she was eleven years old. Philip was the third son of Louis XV's uncle, Philip V d'Anjou, King of Spain, and of his second wife, Elizabeth of Parma. Through his mother, he inherited the Duchy of Parma and with his wife founded the House of Bourbon-Parma.
This engagement followed a tradition dating back to 1559 of cementing military and political alliances between the Catholic powers of France and Spain with royal marriages. Despite this and the fact that Philip was her father's first cousin, the announcement of the marriage agreement was not well received at the French court, as there was little chance that Philip would become King of Spain…
...The marriage was not a happy one. The couple had three children:
Isabella Maria Luisa Antonietta Ferdinanda Giuseppina Saveria Dominica Giovanna (1741–1763) who later married the Austrian emperor, Joseph II, queen Marie Antoinette's older brother. Both of her children died in childhood.
Ferdinand Maria Filippo Lodovico Sebastiano Francesco Giacomo (1751–1802) who succeeded his father as Duke of Parma in 1765 and married Archduchess Maria Amalia of Austria, his older sister's sister-in-law, and left issue.
Luisa Maria Teresa Ana (1751–1819), known as Maria Luisa who married Infante Charles of Spain, her cousin, and later became the Queen consort of Spain. She left issue…"