The ''Conversio Bagoariorum et Carantanorum'' ("The Conversion of the Bavarians and the Carantanians") is a Latin history written in

Salzburg Salzburg is the List of cities and towns in Austria, fourth-largest city in Austria. In 2020 its population was 156,852. The city lies on the Salzach, Salzach River, near the border with Germany and at the foot of the Austrian Alps, Alps moun ...

in the 870s. It describes the life and career of Salzburg's founding saint Rupert (d. 710), notably his missionary work in Bavaria, and the activities of the bishops and abbots in the

Archdiocese of Salzburg The Archdiocese of Salzburg (; ) is a Latin rite archdiocese of the Catholic Church centered in Salzburg, Austria. It is also the principal diocese of the ecclesiastical province of Salzburg. The archdiocese is one of two Austrian archdioceses, ...

. It concludes with a brief history of

Carantania Carantania, also known as Carentania (, , in Old Slavic '), was a Slavic principality that emerged in the second half of the 7th century, in the territory of present-day southern Austria and north-eastern Slovenia. Since the middle of the ...

. The work may have been written by Adalwin himself, the then resident Archbishop of Salzburg. It was intended to give

Louis the German Louis the German (German language, German: ''Ludwig der Deutsche''; c. 806/810 – 28 August 876), also known as Louis II of Germany (German language, German: ''Ludwig II. von Deutschland''), was the first king of East Francia, and ruled from 8 ...

a particular historical perspective on a recent collision between the missionary work conducted from Salzburg and that pursued by the brothers

Cyril and Methodius Cyril (; born Constantine, 826–869) and Methodius (; born Michael, 815–885) were brothers, Population of the Byzantine Empire, Byzantine Christian theologians and Christian missionaries, missionaries. For their work evangelizing the Slavs ...

, who preached the new religion among the

Slavic people The Slavs or Slavic people are groups of people who speak Slavic languages. Slavs are geographically distributed throughout the northern parts of Eurasia; they predominantly inhabit Central Europe, Eastern Europe, Southeastern Europe, and N ...

Great Moravia Great Moravia (; , ''Meghálī Moravía''; ; ; , ), or simply Moravia, was the first major state that was predominantly West Slavic to emerge in the area of Central Europe, possibly including territories which are today part of the Czech Repub ...

and

Pannonia Pannonia (, ) was a Roman province, province of the Roman Empire bounded on the north and east by the Danube, on the west by Noricum and upper Roman Italy, Italy, and on the southward by Dalmatia (Roman province), Dalmatia and upper Moesia. It ...

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