Maria Theresa of Austria (1717)

Maria Theresa became Archduchess of Austria and Queen of Bohemia and Hungary upon the death of her father, Holy Roman Emperor Charles VI. Lacking a male heir, he had initiated the Pragmatic Sanction providing for female heirs to inherit the Habsburg property and throne. She married Emperor Francis I and bore him 16 children, 10 of whom survived to adulthood. Two of their sons became emperors, and two of their daughters became queens. One queen was Marie Antoinette of France. Who was the other? Discuss

Source: The Free Dictionary