Wolfgang Amadeus Mozart was born on 27 January 1756 to Leopold Mozart (1719–1787) and Anna Maria, née Pertl (1720–1778), at Getreidegasse 9 in Salzburg. Salzburg was the capital of the Archbishopric of Salzburg, an ecclesiastic principality in the Holy Roman Empire (today in Austria). 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 baptised the day after his birth, at St. Rupert's Cathedral in Salzburg. The baptismal record gives his name in Latinized form, as "Joannes Chrysostomus Wolfgangus Theophilus Mozart". He generally called himself "Wolfgang Amadè Mozart" as an adult, but his name had many variants.