According to the contemporary ''
Chronicle of Fredegar'', the 'battle of Wogastisburg' was a battle between
Slavs (''Sclav, cognomento Winidi'') under King
Samo and
Franks under King
Dagobert I in
631. The Frankish armies were advancing the area of Slavic tribal union in three streams -
Alamanni,
Langobards, and
Austrasian Franks. The first two were quite successful, but the main fighting force was defeated in a three-day battle near Wogastisburg.
The site of the battle cannot be successfully located because the source, Fredegar's chronicle, gives no geographical specifications. Thus a lot of places claim to be connected with the battle (usually based on linguistic parallels and some excavations), such as
RubÃn hill near
Podbořany (
Bohemia),
Úhošť hill near
Kadaň (
Bohemia),
Bratislava (
Slovakia),
Staffelberg near
Bad Staffelstein (
Bavaria),
Burk near
Forchheim (
Oberfranken),
Vienna, and other places along the middle
Danube etc.
In fact, there is no conclusive evidence for any of these locations and it is even possible that the term Wogastisburg referred only to a kind of a temporary "camp".