Wolfgang Amadeus Mozart was born and raised in Salzburg, Austria. At his birth, he was baptized with the name Joannes Chrysostomus Wolfgangus Theophilus Mozart. The name Wolfgangus was shortened to Wolfgang, and this was the name he went by primarily. The name "Wolfgangus" or "Wolfgang" came from a relative, who he was named for. The name "Wolfgang" means "running wolf."
The name Wolfgang was shortened to "Wolferl" when he was a child. This nickname was used by his family. A somewhat similar nickname was given to his sister, Maria Anna. Her family nickname was "Nannerl." She also went by this nickname in the home. It was when Mozart watched his sister play the piano that he began to become fascinated with the instrument. The two were very close.