Later life Austrian musicologist Otto Erich Deutsch, who studied all available letters and documents about Mozart, arrived at the following conclusion about what he had called himself: "In Italy, from 1770, Mozart called himself 'Wolfgango Amadeo', and from about 1777, 'Wolfgang Amadé'." The use of multiple language versions of the same name was perhaps common in Mozart's day. Joseph Haydn went by "Joseph" (German, English and French), "Josephus" (Latin) and "Giuseppe" (Italian); and Ludwig van Beethoven published his works as "Luigi" (Italian) and as "Louis" (French). (This use has persisted in Italy, where it is quite natural to this day to name a street "viale Giorgio Washington" after the American president, and the like.) Mozart's preference for "Wolfgang Amadè" can be seen on the wedding contract for his marriage to Constanze Weber, dated August 3, 1782, where his signature says "Wolfgang Amade Mozart". In the parish register entry for the marriage, dated August 4, Mozart is referred to as "Herr Wolfgang Adam Mozart", which is a different name but probably a misspelling for "Amadé" (or Amadeus). Mozart spelled "Amadè" variously in regard to the accent on the final letter. Robert Spaethling, who translated many of Mozart's letters, writes, he "is especially nonchalant in his placement of Italian and French accents: sometime he writes 'chèr papa', at other times 'chér papa,' and even his own name appears variously as 'Amadé', 'Amadè', and plain 'Amade'." As a web search indicates, modern usage also varies among these three alternatives. Mozart's preference for "Amadè" was not in general respected by others. Frequently, he was called either "Wolfgang Amadeus" or "Wolfgang Gottlieb". Here are examples: The day Mozart died, his name was entered in the death records of the Vienna Magistrate as "Wolfgang Amadeus". This is the earliest posthumous source that uses the Latin version of his name. In this time it was common practice to use a latinized form for all death records. In a letter dated December 11, 1791, Mozart's widow Constanze, in severe financial straits, asked to be given a pension by the Emperor (the appeal was ultimately successful). She signed herself "Konstantia Mozart, née Weber, widow relict of the late Wolfgang Amadeus Mozart." Imperial officials, replying to her request, used the same name. A benefit concert for Mozart's family was held in Prague on December 28, 1791, billed as "Concert in memory of Wolfgang Gottlieb Mozart". The rise of "Amadeus" It