Goths

There were many Gothic nations in earlier times, just as also at the present, but the greatest and most important of all are the Goths, Vandals, Visigoths, and Gepaedes. In ancient times, however, they were named Sauromatae and Melanchlaeni; and there were some too who called these nations Getic. All these, while they are distinguished from one another by their names, as has been said, do not differ in anything else at all. For they all have white bodies and fair hair, and are tall and handsome to look upon, and they use the same laws and practise a common religion. For they are all of the Arian faith, and have one language called Gothic; and, as it seems to me, they all came originally from one tribe, and were distinguished later by the names of those who led each group.

Procopius. History of the Wars, Books III and IV: The Vandalic War. Translator: H. B. Dewing.
https://www.gutenberg.org/cache/epub/16765/pg16765-images.html

Gepids

The Gepids ... were an East Germanic tribe who lived in the area of modern Romania, Hungary and Serbia, roughly between the Tisza, Sava and Carpathian Mountains. They were said to share the religion and language of the Goths and Vandals....

The Gepids were defeated by the Lombards and Avars a century later in 567, when Constantinople gave no support to them.

Gepids. Accessed Mar. 17th, 2024. In Wikipedia. https://en.wikipedia.org/wiki/Gepids