Mozart's name Mozart's father Leopold announced the birth of his son in a letter to the publisher Johann Jakob Lotter with the words "... the boy is called Joannes Chrisostomus, Wolfgang, Gottlieb" (""der Bub heißt Joannes Chrisostomus, Wolfgang, Gottlieb"" in German). The baptismal names "Joannes" and "Chrysostomus" also have German equivalents, namely "Johann" and "Chrysostomos" (or less frequently, "Chrysostom"). The widely used "Grove Dictionary of Music and Musicians" employs these versions in the heading name for its Mozart article, which parenthesizes the little-used baptismal names: "(Johann Chrysostom) Wolfgang Amadeus Mozart." Here are the details of the various names given on the register:
Wolfgang Amadeus Mozart of "Ascanio in Alba" (1771) and "Lucio Silla" (1772). Leopold hoped that these visits would result in a professional appointment for his son, and indeed ruling Archduke Ferdinand contemplated hiring Mozart but owing to his mother Empress Maria Theresa's reluctance to employ "useless people", the matter was dropped and Leopold's hopes were never realized. Toward the end of the journey, Mozart wrote the solo motet "Exsultate, jubilate", K. 165. After finally returning with his father from Italy on 13 March 1773, Mozart was employed as a court musician by the ruler of Salzburg, Prince-Archbishop Hieronymus Colloredo. The composer had a