Oida, wos redst du? Heast, der Mozart war a Salzburger!
Mozart was born in Salzburg, then a principality of the Holy Roman Empire, which comprised modern Germany, Austria, and parts of Italy, France, Poland and smaller modern sates. The Austrian House of Habsburg ruled as Holy Roman Emperors, with Vienna as the capital of the HRE, and their empire was about 1/3 of the HRE. Given Salzburg was then part of the HRE and became part of Austria after the dissolution of the HRE and ultimately the House of Habsburg, Geh, hear auf!