Mozart's name by Mozart scholar Michael Lorenz in the registers of the Lower Austrian Governorship, where in May 1787 "Mozart Wolfgang Amadeus" is referred to as having applied for the return of his written surety for his friend . Other uses of "Amadeus", from immediately after Mozart's death in 1791, are given above. The 19th century saw the gradual victory of "Amadeus" over alternative middle names. The earliest (18th century) biographers of Mozart, such as Friedrich Schlichtegroll and Franz Niemetschek, used "Gottlieb". However, in 1798 the publishing firm of Breitkopf & Härtel began to issue a (partial) Complete Works edition under the
Death of Wolfgang Amadeus Mozart life. Beyond the Salieri theory, other theories involving murder by poison have been put forth, blaming the Masons, Jews, or both. One such theory was the work of Mathilde Ludendorff, wife of the German general Erich Ludendorff. William Stafford (1991) describes such accounts as outlandish conspiracy theories, giving supporting reasons. Stafford (1991:56) described the effort to determine what disease killed Mozart: In the parish register, the entry concerning Mozart's death states he died of "severe miliary fever"; – "miliary" referring to the appearance of millet-sized bumps on the skin. This does not name the actual disease. Mozart had health problems