The Archbishopric of Salzburg was an ecclesiastical

Prince-Bishop

A Prince-Bishop is a bishop who is a territorial Prince of the Church on account of one or more secular principalities, usually pre-existent titles of nobility held concurrently with their inherent clerical office...

 State

Imperial State

An Imperial State or Imperial Estate was an entity in the Holy Roman Empire with a vote in the Imperial Diet assemblies. Several territories of the Empire were not represented, while some officials were non-voting members; neither qualified as Imperial States.Rulers of Imperial States were...

 of the Holy Roman Empire

Holy Roman Empire

The Holy Roman Empire was a realm that existed from 962 to 1806 in Central Europe.It was ruled by the Holy Roman Emperor. Its character changed during the Middle Ages and the Early Modern period, when the power of the emperor gradually weakened in favour of the princes...

, its territory roughly congruent with the present-day Austria

Austria

Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

n state

States of Austria

Austria is a federal republic made up of nine states, known in German as Länder . Since Land is also the German word for a country, the term Bundesländer is often used instead to avoid ambiguity. The Constitution of Austria uses both terms...

 of Salzburg

Salzburg (state)

Salzburg is a state or Land of Austria with an area of 7,156 km2, located adjacent to the German border. It is also known as Salzburgerland, to distinguish it from its capital city, also named Salzburg...

.

The diocese arose from St Peter's Abbey, founded in the German stem duchy

Stem duchy

Stem duchies were essentially the domains of the old German tribes of the area, associated with the Frankish Kingdom, especially the East, in the Early Middle Ages. These tribes were originally the Franks, the Saxons, the Alamanni, the Burgundians, the Thuringii, and the Rugii...

 of Bavaria

Duchy of Bavaria

The Duchy of Bavaria was the only one of the stem duchies from the earliest days of East Francia and the Kingdom of Germany to preserve both its name and most of its territorial extent....

 about 696 by St Rupert

Rupert of Salzburg

Rupert of Salzburg is a saint in the Roman Catholic and Eastern Orthodox churches and a founder of the Austrian city of Salzburg...

 at the former Roman

Ancient Rome

Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

 city of Iuvavum

Salzburg

-Population development:In 1935, the population significantly increased when Salzburg absorbed adjacent municipalities. After World War II, numerous refugees found a new home in the city. New residential space was created for American soldiers of the postwar Occupation, and could be used for...

(Salzburg). The last Archbishop with princely authority before the secularisation

German Mediatisation

The German Mediatisation was the series of mediatisations and secularisations that occurred in Germany between 1795 and 1814, during the latter part of the era of the French Revolution and then the Napoleonic Era....

 was Count Hieronymus von Colloredo

Count Hieronymus von Colloredo

Count Hieronymus Joseph Franz de Paula Graf Colloredo von Wallsee und Melz was Prince-Bishop of Gurk from 1761 and Prince-Archbishop of Salzburg from 1771 until 1803, when the Archbishopric was secularized.-Life:He was the second son of Count Rudolf Wenzel Joseph Colloredo von Wallsee und Melz , a...

, an early patron of Salzburg native Wolfgang Amadeus Mozart

Wolfgang Amadeus Mozart

Wolfgang Amadeus Mozart , baptismal name Johannes Chrysostomus Wolfgangus Theophilus Mozart , was a prolific and influential composer of the Classical era. He composed over 600 works, many acknowledged as pinnacles of symphonic, concertante, chamber, piano, operatic, and choral music...

.

Up to today, the Archbishop of Salzburg has also borne the title Primas Germaniae

Primas Germaniae

Primas Germaniae is a historical title of honour for the most important Catholic bishop in Germany.Since at least 965 the Title was held by the Archbishop of Mainz as most important Archbishop and most noble Prince-Elector of the Holy Roman Empire until the See of Mainz was secularized in 1803...

("First [Bishop] of Germany").