Greuthungi in the context of "Lower Danube"

The Battle of Adrianople also known as Battle of Hadrianopolis was fought between the Eastern Roman army led by the Roman emperor Valens and Gothic rebels (largely Thervings as well as Greutungs, non-Gothic Alans, and various local rebels) led by Fritigern. The battle took place on 9 August 378 in the vicinity of Adrianople, in the Roman province of Thracia (modern Edirne in European Turkey). It ended with an overwhelming victory for the Goths and the death of Emperor Valens.

As part of the Gothic War of 376–382, the battle is often considered the start of the events which led to the fall of the Western Roman Empire in the 5th century.

The Thervingi, Tervingi, or Teruingi (sometimes pluralised Tervings or Thervings) were a Gothic people of the plains north of the Lower Danube and west of the Dniester River in the 3rd and the 4th centuries.

They had close contacts with the Greuthungi, another Gothic people from east of the Dniester, and they also had significant interactions with the Roman Empire. They were one of the main components of the large movement of Goths and other peoples over the Danube in 376, and they are seen as one of the most important ancestral groups of the Visigoths.

The barbarian invasions of the third century (212–305) constituted an uninterrupted period of raids within the borders of the Roman Empire, conducted for purposes of plunder and booty by armed peoples belonging to populations gravitating along the northern frontiers: Picts, Caledonians, and Saxons in Britain; the Germanic tribes of Frisii, Saxons, Franks, Alemanni, Burgundians, Marcomanni, Quadi, Lugii, Vandals, Juthungi, Gepids and Goths (Tervingi in the west and Greuthungi in the east), the Dacian tribes of the Carpi and the Sarmatian tribes of Iazyges, Roxolani and Alans, as well as Bastarnae, Scythians, Borani and Heruli along the Rhine-Danube rivers and the Black Sea.

Since the time of Marcus Aurelius during the Marcomannic Wars (166/167-189), Germanic-Sarmatian tribes had not exerted such strong pressure along the northern borders of the Roman Empire.

The Crimean Goths were a Germanic-speaking people that lived in the lands around the Black Sea, especially Crimea, between about the 3rd and 18th centuries. While the exact period when they ceased to exist as a distinct culture is unknown, they were the longest-lasting of the peoples known as Goths – a name applied to various tribes that may have had little or no connection to each other. Based on the limited historical and linguistic evidence, the Crimean Goths may have been connected to a preceding East Germanic tribe called the Greuthungi and/or a tribe speaking a West Germanic language.

Apart from textual reports of the existence of the Goths in Crimea, both first- and second-hand, from as early as 850, numerous archaeological sites also exist, including the ruins of the former capital city of the Crimean Goths: Doros (present-day Mangup). Furthermore, numerous articles of jewellery, weaponry, shields, buttons, pins, and small personal artefacts on display in museums in Crimea and in the British Museum have led to a better understanding of Crimean Gothia.