The composer Wolfgang Amadeus Mozart ( , ) went by many different names in his lifetime. This resulted partly from the church traditions of the day, and partly from Mozart being multilingual and freely adapting his name to other languages. Baptismal record Mozart was baptized as Joannes Chrysostomus Wolfgangus Theophilus Mozart on 28 January 1756, the day after his birth, at St. Rupert's Cathedral in Salzburg. The baptismal register of the cathedral parish contains the entry shown below, written down in Latin by city chaplain Leopold Lamprecht. A transcription with editorial additions by Otto Erich Deutsch follows. 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: Mozart's first two baptismal names, "Joannes Chrysostomus", represent his saint's name, following the custom of the Catholic Church. They result from his birthday, 27 January, being the feast day of St. John Chrysostom. The document also records that Mozart was of legitimate birth and gives the names of his parents and his father Leopold's occupation as court musician. The first paragraph indicates that the baptism took place at 10:30 in the morning, and that Mozart had been born at 8:00 the night before. The baptismal name "Joannes Chrysostomus" was in conformance to Catholic custom and was not used by Mozart in everyday life. "Chrysostomus" means "golden mouth." "Wolfgangus" is "Wolfgang", adapted to the Latin used in the parish register. Mozart used "Wolfgang" in German-speaking contexts. "Wolfgang", which means "walks with wolves", was the name of his maternal grandfather. "Theophilus" comes from Greek and is variously rendered as "lover of God" or "loved by God." "Gottlieb" is its German form, and the familiar "Amadeus" is its Latin form. In later life, Mozart himself would use the Italian and French equivalents, respectively "Amadeo" and "Amadè". "Theophilus" was a name of Mozart's godfather, the merchant Joannes Theophilus Pergmayr, whose presence is recorded in the fourth paragraph.