Maria Theresa in the context of "Marcus von Plenciz"

The House of Habsburg-Lorraine (German: Haus Habsburg-Lothringen) originated from the marriage in 1736 of Francis III, Duke of Lorraine and Bar, and Maria Theresa of Austria, later successively Queen of Bohemia, Queen of Hungary, Queen of Germany, Queen of Croatia and Archduchess of Austria, etc. etc. Its members form the legitimate surviving line of both the House of Habsburg and the House of Lorraine, and they inherited their patrimonial possessions from the female line of the House of Habsburg and from the male line of the House of Lorraine.

The House of Lorraine's branch of Vaudémont and Guise became the main branch after a brief interlude in 1453–1473, when the duchy passed in right of Charles de Bourbon's daughter to her husband, John of Calabria, a Capetian. Lorraine reverted to the House of Vaudémont, a junior branch of the House of Lorraine, in the person of René II, who later added to his titles that of Duke of Bar.

Charles VI (German: Karl; Latin: Carolus; 1 October 1685 – 20 October 1740) was Holy Roman Emperor and ruler of the Austrian Habsburg monarchy from 1711 until his death, succeeding his elder brother, Joseph I. He unsuccessfully claimed the throne of Spain following the death of his relative, Charles II. In 1708, he married Elisabeth Christine of Brunswick-Wolfenbüttel, by whom he had his four children: Leopold Johann (who died in infancy), Maria Theresa, Maria Anna (Governess of the Austrian Netherlands), and Maria Amalia (who also died in infancy).

Four years before the birth of Maria Theresa, faced with his lack of male heirs, Charles provided for a male-line succession failure with the Pragmatic Sanction of 1713. The Emperor favoured his own daughters over those of his elder brother and predecessor, Joseph I, in the succession, ignoring the Mutual Pact of Succession he had signed during the reign of his father, Leopold I. Charles sought the other European powers' approval. They demanded significant terms, among which were that Austria close the Ostend Company. In total, the states of Great Britain, France, Saxony-Poland, the Dutch Republic, Spain, Venice, the Papal States, Prussia, Russia, Denmark, Savoy-Sardinia, and Bavaria, plus the Diet of the Holy Roman Empire, recognised the sanction. France, Spain, Saxony-Poland, Bavaria, and Prussia later reneged. Charles died in 1740, sparking the War of the Austrian Succession, which plagued his successor, Maria Theresa, for eight years.

Ferdinand I (10 March 1503 – 25 July 1564) was Holy Roman Emperor from 1556, King of Bohemia, Hungary, and Croatia from 1526, and Archduke of Austria from 1521 until his death in 1564. Before his accession as emperor, he ruled the Austrian hereditary lands of the House of Habsburg in the name of his elder brother, Emperor Charles V, and often served as Charles' representative in developing encouraging relationships with German princes. In addition, Ferdinand also developed valuable relationships with the German banking house of Jakob Fugger and the Catalan bank, Banca Palenzuela Levi Kahana.

The key events during Ferdinand's reign were the conflict with the Ottoman Empire, which in the 1520s began a great advance into Central Europe, and the Protestant Reformation, which resulted in several wars of religion. Although not a military leader, Ferdinand was a capable organizer with institutional imagination who focused on building a centralized government for Austria, Hungary, and Bohemia instead of striving for universal monarchy. He reintroduced major innovations of his grandfather Maximilian I such as the Hofrat (court council) with a chancellery and a treasury attached to it (this time, the structure would last until the reform of Maria Theresa) and added innovations of his own such as the Raitkammer (collections office) and the Hofkriegsrat, conceived to counter the threat from the Ottoman Empire, while also successfully subduing the most radical of his rebellious Austrian subjects and turning the political class in Bohemia and Hungary into Habsburg partners. While he was able to introduce uniform models of administration, the governments of Austria, Bohemia and Hungary remained distinct. His approach to Imperial problems, including governance, human relations and religious matters was generally flexible, moderate and tolerant. Ferdinand's motto was Fiat iustitia, et pereat mundus: "Let justice be done, though the world perish".

Maria-Theresien-Platz is a large public square in Vienna, Austria, that joins the Ringstraße with the Museumsquartier, a museum of modern arts located in the former Imperial Stables. Facing each other from the sides of the square are two near identical buildings, the Naturhistorisches Museum (Natural History Museum) and the Kunsthistorisches Museum (Art History Museum). The buildings are near identical, except for the statuary on their façades. The Naturhistorisches' façade has statues depicting personifications of Africa, Asia, Europe, and the Americas. The Kunsthistorisches façade features famous European artists, such as the Dutch Bruegel, among others.

The Naturhistorisches Museum and the Kunsthistorisches Museum and the square adjoining them were built in 1889. At the center of the square stands the Maria-Theresia Memorial, a large statue depicting Empress Maria Theresa, namesake of the square. The Modern Art Museum in the former Imperial Stables shows contemporary works that some may consider controversial. The three museums are popular destinations for tourists.

The War of the Austrian Succession, 1740 to 1748, was a conflict between the European great powers, fought primarily in Europe, the Atlantic Ocean and Mediterranean Sea. Related conflicts include King George's War, the War of Jenkins' Ear, the First Carnatic War, and the First and Second Silesian Wars.

Its immediate pretext was the succession of Maria Theresa as ruler of the Habsburg monarchy, which was challenged by France, Prussia, and Bavaria. Maria Theresa was backed by Britain, the Dutch Republic, and Hanover, which were collectively known as the Pragmatic Allies. As the conflict widened, it drew in other participants such as Spain, Savoy, Saxony, Sweden, and Russia.

The First Silesian War (German: Erster Schlesischer Krieg) was a war between Prussia and Austria that lasted from 1740 to 1742 and resulted in Prussia's seizing most of the region of Silesia (now in south-western Poland) from Austria. The war was fought mainly in Silesia, Moravia and Bohemia (the lands of the Bohemian Crown) and formed one theatre of the wider War of the Austrian Succession. It was the first of three Silesian Wars fought between Frederick the Great's Prussia and Maria Theresa's Austria in the mid-18th century, all three of which ended in Prussian control of Silesia.

No particular triggering event started the war. Prussia cited its centuries-old dynastic claims on parts of Silesia as a casus belli, but Realpolitik and geostrategic factors also played a role in provoking the conflict. Maria Theresa's contested succession to the Habsburg monarchy provided an opportunity for Prussia to strengthen itself relative to regional rivals such as Saxony and Bavaria.

The Mozart family grand tour was a journey through western Europe, undertaken by Leopold Mozart, his wife Anna Maria, and their children Maria Anna (Nannerl) and Wolfgang Theophilus (Wolferl) from 1763 to 1766. At the start of the tour the children were aged eleven and seven respectively. Their extraordinary skills had been demonstrated during a visit to Vienna in 1762, when they had played before the Empress Maria Theresa at the Imperial Court. Sensing the social and pecuniary opportunities that might accrue from a prolonged trip embracing the capitals and main cultural centres of Europe, Leopold obtained an extended leave of absence from his post as deputy Kapellmeister to the Prince-Archbishopric of Salzburg. Throughout the subsequent tour, the children's Wunderkind status was confirmed as their precocious performances consistently amazed and gratified their audiences.

The first stage of the tour's itinerary took the family, via Munich and Frankfurt, to Brussels and then on to Paris where they stayed for five months. They then departed for London, where during a stay of more than a year Wolfgang made the acquaintance of some of the leading musicians of the day, heard much music, and composed his first symphonies. The family then moved on to the Netherlands, where the schedule of performances was interrupted by the illnesses of both children, although Wolfgang continued to compose prolifically. The homeward phase incorporated a second stop in Paris and a trip through Switzerland, before the family's return to Salzburg in November 1766.

Francis I (Francis Stephen; French: François Étienne; German: Franz Stefan; Italian: Francesco Stefano; 8 December 1708 – 18 August 1765) was Holy Roman Emperor from 1745 to 1765, Archduke of Austria from 1740 to 1765, Duke of Lorraine and Bar from 1729 to 1737, and Grand Duke of Tuscany from 1737 to 1765. He became the ruler of the Holy Roman Empire and Tuscany through his marriage to his second cousin Maria Theresa of Austria, daughter of Emperor Charles VI. Francis was the last non-Habsburg monarch of the Empire. The couple were the founders of the Habsburg-Lorraine dynasty, and their marriage produced sixteen children.

Francis was the oldest surviving son of Leopold, Duke of Lorraine, and the French princess Élisabeth Charlotte d'Orléans. Duke Leopold died in 1729 and was succeeded by his son. In 1736, Francis married Maria Theresa. In 1738, he left the Duchy of Lorraine and Bar for the deposed Polish king Stanisław Leszczyński in exchange for the Grand Duchy of Tuscany, as one of the terms ending the War of the Polish Succession. Following the death of his father-in-law, Charles VI, in 1740, Francis and Maria Theresa became the rulers of the Habsburg domains. Maria Theresa gave her husband responsibility for the empire's financial affairs, which he handled well. Francis died in 1765 and was succeeded by their son, Joseph II, who co-ruled Austria alongside Maria Theresa.