Wolfgang Amadeus Mozart works in the shadow of Mozart, and Joseph Haydn wrote: "posterity will not see such a talent again in 100 years". Wolfgang Amadeus Mozart was born on 27January 1756 to Leopold Mozart (1719–1787) and Anna Maria, née Pertl (1720–1778), at 9 Getreidegasse in Salzburg. This was the capital of the Archbishopric of Salzburg, an ecclesiastic principality in what is now Austria, then part of the Holy Roman Empire. He was the youngest of seven children, five of whom died in infancy. His elder sister was Maria Anna Mozart (1751–1829), nicknamed "Nannerl". Mozart was baptized the day after his birth, at
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