Who married Marie Thérèse Louise of Savoy, Princesse de Lamballe?

Marie-Thérèse Louise of Savoy, Princesse de Lamballe (Italian: Maria Teresa Luisa; 8 September 1749 – 3 September 1792) was an Italian noblewoman and member of the Savoy-Carignano cadet branch of the House of Savoy. She was married at the age of 17 to Louis Alexandre de Bourbon-Penthièvre, Prince de Lamballe, the heir to the greatest fortune in France. After her marriage, which lasted a year, she went to the French royal court and became the confidante of Queen Marie Antoinette. She was killed in the massacres of September 1792 during the French Revolution.

Louis Alexandre de Bourbon (Louis Alexandre Joseph Stanislas; 6 September 1747 – 6 May 1768) was the son and heir of Louis Jean Marie de Bourbon, great grandson of Louis XIV by the king's legitimised son, Louis Alexandre de Bourbon. He was known as the Prince of Lamballe from birth. He pre-deceased his father, and died childless.