Queen Maria Teresa of Austria was a significant historical figure who reigned from 1740 to 1780. She was the only female ruler of the Habsburg dominions and is known for her reforms in government, education, and military. Maria Teresa worked to strengthen her empire and improve the lives of her subjects, implementing policies that modernized the administration. Born in 1717, she was the daughter of Emperor Charles VI and married Francis I, Holy Roman Emperor. Maria Teresa had 16 children, including Marie Antoinette, who became the Queen of France. Her reign marked a pivotal period in European history, influencing the balance of power in the continent.