Wife of Louis XIII of France, whom she married in 1615. She was the daughter of Philip III of Spain. Her friend Madame de Chevreuse was involved in plots against Richelieu, and she was accused of encouraging the advances of the Duke of Buckingham. When her 4‐year‐old son succeeded to the throne as Louis XIV in 1643 she was declared regent and gave her full support to Mazarin during the Fronde. She influenced her son until her death, though her regency ended in 1651.