Question: What is the full name of the eldest sibling who performed for the Empress Maria Theresa at the Imperial Court during a visit to Vienna in 1762?

full_context: Document 1: Constanze Mozart: Maria Constanze Cäcilia Josepha Johanna Aloysia Mozart (née Weber) (5 January 1762 – 6 March 1842) was an Austrian woman who trained as a singer. She married twice, her first husband being Wolfgang Amadeus Mozart, and was later, jointly with her second husband Georg Nikolaus von Nissen, Mozart's biographer. She and Mozart had six children, Karl Thomas Mozart, Franz Xaver Wolfgang Mozart, and four who died in infancy.
Document 2: Maria Franziska von Trapp: Maria Agatha Franziska Gobertina von Trapp (28 September 1914 – 18 February 2014) was the second-oldest daughter of Georg von Trapp and his first wife, Agatha Whitehead von Trapp. She was a member of the Trapp Family Singers, whose lives inspired the musical and film "The Sound of Music". She was portrayed as the character "Louisa". She died at age 99, and was the last surviving sibling portrayed in the film.
Document 3: Nannerl Notenbuch: The Nannerl Notenbuch , or Notenbuch für Nannerl (English: Nannerl's Music Book) is a book in which Leopold Mozart, from 1759 to about 1764, wrote pieces for his daughter, Maria Anna Mozart (known as "Nannerl"), to learn and play. His son Wolfgang also used the book, in which his earliest compositions were recorded (some penned by his father). The book contains simple short keyboard (typically harpsichord) pieces, suitable for beginners; there are many anonymous minuets, some works by Leopold, and a few other composers including Carl Philipp Emanuel Bach and the Austrian composer Georg Christoph Wagenseil. There are also some technical exercises, a table of intervals, and some modulating figured basses. The notebook originally contained 48 bound pages of music paper, but only 36 pages remain, with some of the missing 12 pages identified in other collections.
Document 4: Johanna van Beethoven: Johanna van Beethoven (née Reiß [Reiss]; 1786–1869) was the sister-in-law of the composer Ludwig van Beethoven. She is remembered for the bitter custody battle between herself and the composer over her son Karl, one of the most ugly and traumatic episodes in the composer's life.
Document 5: Pietro Antonio Lorenzoni: Pietro Antonio Lorenzoni (1721–1782) was an Italian painter who is believed to have painted several portraits of Wolfgang Amadeus Mozart and his family: "The Boy Mozart" (1763), his sister Maria Anna Mozart in "Nannerl as a Child" (1763) and a portrait of their father Leopold Mozart (c. 1765). He arrived in Salzburg, Austria in the 1740s and first wanted to paint Wolfgang and Nannerl. His protégé, Johann Nepomuk della Croce, painted a Mozart family portrait in 1780.
Document 6: Franz Xaver Wolfgang Mozart: Franz Xaver Wolfgang Mozart (26 July 1791 – 29 July 1844), also known as Wolfgang Amadeus Mozart, Jr., was the youngest child of six born to Wolfgang Amadeus Mozart and his wife Constanze. He was the younger of his parents' two surviving children. He was a composer, pianist, conductor, and teacher from the late classical period whose musical style was of an early Romanticism, heavily influenced by his father's mature style.
Document 7: Leopold Mozart: Johann Georg Leopold Mozart (November 14, 1719 – May 28, 1787) was a German composer, conductor, teacher, and violinist. Mozart is best known today as the father and teacher of Wolfgang Amadeus Mozart, and for his violin textbook "Versuch einer gründlichen Violinschule".
Document 8: Maria von Trapp: Maria Augusta von Trapp (née Kutschera; 26 January 1905 – 28 March 1987), also known as Baroness von Trapp, was the stepmother and matriarch of the Trapp Family Singers. She wrote "The Story of the Trapp Family Singers" which was published in 1949. The story served as the inspiration for the 1956 West German film "The Trapp Family", which in turn inspired the Broadway musical "The Sound of Music" (1959) and the 1965 film of the same name.
Document 9: 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 by birth Archduchess of Austria and member of the House of Habsburg and by marriage Electress of Bavaria.
Document 10: Marie Wieck: Marie Wieck (January 17, 1832 – November 2, 1916) was a German pianist, singer, piano teacher, and composer. She was the daughter of renowned piano teacher Friedrich Wieck, and the sister of Clara Schumann who was some 12 years older.
Document 11: Josepha Weber: (Maria) Josepha Weber (later Josepha Hofer, Josepha Meier; 1758 – December 29, 1819) was a German soprano of the classical era. She was a sister-in-law of Wolfgang Amadeus Mozart, and the first to perform the role of The Queen of the Night in Mozart's opera "The Magic Flute" (1791).
Document 12: Maria Anna Mozart: Maria Anna Walburga Ignatia Mozart (30 July 1751 – 29 October 1829), called Marianne and nicknamed "Nannerl", was a musician, the older sister of Wolfgang Amadeus Mozart and daughter of Leopold and Anna Maria Mozart.
Document 13: Mozart family grand tour: The Mozart family grand tour was a journey through western Europe, undertaken by Leopold Mozart, his wife Anna Maria, and their musically gifted children Maria Anna (Nannerl) and Wolfgang Amadeus 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-Archbishop of Salzburg. Throughout the subsequent tour, the children's "Wunderkind" status was confirmed as their precocious performances consistently amazed and gratified their audiences.
Document 14: Archduchess Maria Anna of Austria (governor): Archduchess Maria Anna Eleanor Wilhelmina Josepha of Austria (18 September 1718 in Vienna – 16 December 1744 in Brussels) was an Archduchess of Austria and a Princess of Lorraine, the younger sister of Empress Maria Theresa, and a Governor of the Austrian Netherlands.
Document 15: Wolfgang Amadeus Mozart: Wolfgang Amadeus Mozart ( ; ; ] ; 27 January 1756 – 5 December 1791), baptised as Johannes Chrysostomus Wolfgangus Theophilus Mozart, was a prolific and influential composer of the Classical era.
ground_truth: Maria Anna Walburga Ignatia Mozart