Amandus Ivanschiz was baptized Matthias Leopold Ivanschiz on 24 December 1727 in the Austrian city of Wiener Neustadt. As early as 1742, at the age of fifteen, Matthias decided to join the Pauline Order and took the name Amandus. On 25 December 1743 Amandus took his vows and was then sent to Maria Trost and Wiener Neustadt to study for the priesthood. The extensive oeuvre of this master, who only lived to the age of 31, is astonishing. In total, more than 300 copies of his works can be found in Central and Eastern Europe. His modern style and great compositional mastery probably explain the wide dissemination of his music. Ivanschiz might therefore also have served as a model in the development of the young Mozart. Amadeus' first visit to the monastery is documented on 12 September 1767, after which we know he returned at least another three times.