Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. (Maria) Josepha Weber (later Josepha Hofer, Josepha Mayer; 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) and Schikaneder s and Winter s sequel Das Labyrinth oder der Kampf mit den Elementen (1798). She was as well the first to perform the role of Oberon in Paul Wranitzky s opera (1789). She was born in Zell im Wiesental, in Baden-Württemberg, Germany, the daughter of Fridolin Weber. She had three younger sisters (in descending order of age): Aloysia, who was an early love interest of Mozart and sang in his later operas; Constanze, who married Mozart in 1782; and Sophie. The composer Carl Maria von Weber was the son of her father's half brother.