The Franks are defeated by the Burgundians in the Battle of Vézeronce.

The Franks were originally a group of Germanic peoples who lived near the Rhine-river military border of Germania Inferior, which was the most northerly province of the Roman Empire in continental Europe. These Frankish tribes lived for centuries under varying degrees of Roman hegemony and influence, but after the collapse of Roman institutions in western Europe, they took control of a large empire including areas that had been ruled by Rome, and what it meant to be a Frank began to evolve. Once they were deeply established in Gaul, the Franks became a multilingual, Catholic Christian people, who subsequently came to rule over several other post-Roman kingdoms both inside and outside the old empire. In a broader sense, much of the population of western Europe could eventually be described as Franks in some contexts.

The Burgundians were one or more Germanic peoples of the Roman imperial era, associated with different European regions in different periods. The last well-known Burgundians were the followers of the Gibichung dynasty who established their Kingdom of the Burgundians, and left a lasting impact on European politics and culture. They were moved by the Romans from the Rhine border region to Sapaudia, now in French-speaking Switzerland in about 443. Here they expanded into what is now France, and eventually integrated with the local population. The kingdom became an important part of the medieval Frankish empire in 534, and the name of these Burgundians survives in the regional name Burgundy.

The Battle of Vézeronce was fought on 25 June 524 AD near Vézeronce-Curtin, now in Isère, France, between the Franks led by King Chlodomer and the Burgundians commanded by King Godomar.

June 25 is the 176th day of the year in the Gregorian calendar; 189 days remain until the end of the year.