Maria Theresa of Spain was born on September 10, 1638, as the daughter of Philip IV of Spain and Elisabeth of France. She became the Queen of France by marrying Louis XIV in 1660, which was part of a political alliance between Spain and France. As a queen, Maria Theresa played a significant role in the cultural and political life of France. She was known for her beauty and grace, and she had several children, including Louis, Grand Dauphin. Her marriage helped strengthen ties between the two powerful nations during a time of rivalry.