Maria Theresa
Maria Theresa Walburga Amalia Christina (13 May 1717 – 29 November 1780) was the only female ruler of the Habsburg dominions and the last of the House of Habsburg.
She was the sovereign of Austria, Hungary, Croatia, Bohemia, Transylvania, Mantua, Milan, Lodomeria and Galicia, the Austrian Netherlands, and Parma.
By marriage, she was Duchess of Lorraine, Grand Duchess of Tuscany and Holy Roman Empress.
She started her 40-year reign when her father, Emperor Charles VI, died in October 1740.
Charles VI paved the way for her accession with the Pragmatic Sanction of 1713 and spent his entire reign securing it.
He neglected the advice of Prince Eugene of Savoy, who averred that a strong military and a rich treasury were more important than mere signatures.
Eventually, he left behind a weakened and impoverished state, particularly due to the War of the Polish Succession and the Russo-Turkish War (1735–1739).
Moreover, upon his death, Saxony, Prussia, Bavaria, and France all repudiated the sanction they had recognised during his lifetime.
Frederick II of Prussia (who became Maria Theresa's greatest rival for most of her reign) promptly invaded and took the affluent Habsburg province of Silesia in the seven-year conflict known as the War of the Austrian Succession.
In defiance of the grave situation, she managed to secure the vital support of the Hungarians for the war effort.
Over the course of the war, despite the loss of Silesia and a few minor territories in Italy, Maria Theresa successfully defended her rule over most of the Habsburg empire.
Maria Theresa later unsuccessfully tried to reconquer Silesia during the Seven Years' War.
Maria Theresa and her husband, Francis I, Holy Roman Emperor, had eleven daughters, including the Queen of France, the Queen of Naples and Sicily, the Duchess of Parma, and five sons, including two Holy Roman Emperors, Joseph II and Leopold II.
Of the sixteen children, ten survived to adulthood.
Though she was expected to cede power to Francis and Joseph, both of whom were officially
her co-rulers in Austria and Bohemia, Maria Theresa was the absolute sovereign who ruled with the counsel of her advisers.
Maria Theresa promulgated institutional, financial and educational reforms, with the assistance of Wenzel Anton of Kaunitz-Rietberg, Friedrich Wilhelm von Haugwitz and Gerard van Swieten.
She also promoted commerce and the development of agriculture, and reorganised Austria's ramshackle military, all of which strengthened Austria's international standing.
However, she despised the Jews and the Protestants, and on certain occasions she ordered their expulsion to remote parts of the realm.
She also advocated for the state church and refused to allow religious pluralism.
Consequently, her regime was criticized as intolerant by some contemporaries.
Archduchess Maria Anna of Austria (governor)
Archduchess Maria Anna of Austria(" Maria Anna Eleanor Wilhelmina Josepha"; 18 September 1718 in Vienna – 16 December 1744 in Brussels) was a member of the House of Habsburg who governed the Austrian Netherlands in the name of her elder sister, Empress Maria Theresa.
Archduchess Maria Anna of Austria (1835–1840)
Archduchess
Maria Anna of Austria( 27 October 1835 – 5 February 1840), was by birth an Archduchess of Austria and member of the House of Habsburg.
She was the fourth child and only daughter of Archduke Franz Karl of Austria and his wife, Princess Sophie of Bavaria, daughter of Maximilian I Joseph of Bavaria and his second wife Caroline of Baden.
Maria Anna of Austria
Maria Anna of Austria (Maria Anna Josepha Antonia Regina; 7 September 1683 – 14 August 1754) was Queen consort of Portugal by marriage to King John V of Portugal.
She was Regent of Portugal from 1742 until 1750 during the illness of John V.
Archduchess Maria Carolina of Austria (1740–1741)
Archduchess Maria Carolina of Austria (
Maria Carolina Ernestina Antonia Johanna Josefa; 12 January 1740 – 25 January 1741), was the third child and daughter of Archduchess Maria Theresa of Austria, later Holy Roman Empress and Duke Francis of Lorraine.
Archduchess Maria Anna of Austria (1738–1789)
Archduchess Maria Anna of Austria (Maria Anna Josepha Antonia; 6 October 1738 – 19 November 1789) was the second child of Francis I, Holy Roman Emperor, and Maria Theresa, Queen of Hungary and Bohemia.
As a child, and for a time the eldest surviving child, she was heiress presumptive, but she suffered from ill health and physical disability, and did not marry.
In 1766 she became abbess of the "Frauenstift" in Prague.
Soon thereafter she moved to Klagenfurt and remained there for the rest of her life.
Her palace in Klagenfurt, the "Mariannengasse", now houses the Episcopal Palace.
Archduchess Maria Anna of Austria (1610–1665)
Archduchess Maria Anna of Austria( German:" Maria Anna von Habsburg, Erzherzogin von Österreich", also known as" Maria Anna von Bayern" or" Maria- Anna, Kurfürstin von Bayern"; 13 January 1610 – 25 September 1665), was a German regent, Electress of Bavaria by marriage to Maximilian I, Elector of Bavaria, and co-regent of the Electorate of Bavaria during the minority of her son Ferdinand Maria, Elector of Bavaria from 1651 to 1654.
Maria Anna of Savoy
Maria Anna of Savoy( 19 September 1803 – 4 May 1884) was Empress of Austria and Queen of Hungary( see Grand title of the Empress of Austria) by marriage to Emperor Ferdinand I of Austria.
Archduchess Maria Anna of Austria (1770–1809)
Archduchess Maria Anna of Austria ("Maria Anna Ferdinanda Josepha Charlotte Johanna";
21 April 1770 – 1 October 1809) was an Archduchess of Austria by birth, and an Abbess at the Theresian Convent in Prague.
Maria Anna of Bavaria (1551–1608)
Maria Anna of Bavaria( 21 March 1551, Munich – 29 April 1608, Graz) was a politically active Archduchess of Austria by marriage to Archduke Charles II of Austria.
She played an important role in the counter reformation in Austria.

Question: What nationality is Archduchess Maria Anna Of Austria (1738–1789)'s mother?
Answer: Habsburg Empire