Page "Huns" Paragraph 21

After these invasions, the Huns begin to be noted as Foederati and mercenaries.

As early as 380, a group of Huns was given Foederati status and allowed to settle in Pannonia.

Hunnish mercenaries were also seen on several occasions in the succession struggles of the Eastern and Western Roman Empire during the late 4th century.

However, it is most likely that these were individual mercenary bands, not a Hunnish kingdom.