Jordanes’ Getica, written in the 6th century CE, is one of the most important surviving sources on the history of the Goths and the Late Roman world. Formally titled “De origine actibusque Getarum” (The Origin and Deeds of the Goths), the work was composed by the historian Jordanes around 551 CE and summarizes a now-lost history by the Roman statesman Cassiodorus. The Getica traces the origins, migrations, and kings of the Gothic peoples, describing their legendary homeland in Scandinavia, their movement into Eastern Europe, and their conflicts with the Roman Empire. It also recounts major figures such as Alaric, the Visigothic king who famously sacked Rome in 410, and Attila the Hun, whose wars shaped the political landscape of the 5th century. Despite blending legendary traditions with historical narrative, Getica remains a crucial text for understanding Gothic identity, barbarian kingdoms, and the transformation of the late antique Mediterranean world.

The Roman historian Ammianus Marcellanus provides one of the most important primary accounts of the Goths in the late Roman Empire. Writing in the late 4th century, Ammianus described the dramatic arrival of the Gothic tribes along the Danube frontier, their request to settle within Roman territory, and the failures of Roman administration that led to unrest. His narrative gives a detailed account of the Gothic War (376–382), culminating in the catastrophic Battle of Adrianople (378 CE), where the Roman army and Emperor Valens were defeated by the Visigoths under Fritigern. Ammianus portrays the Goths as formidable warriors but also emphasizes how corruption, famine, and mistreatment by Roman officials helped trigger the conflict. Because of its eyewitness perspective and political analysis, Ammianus’s history remains a critical source for understanding Gothic migration, Roman frontier policy, and the transformation of the late Roman world.

The Goths are prominently described in Procopius’ Wars, a major Byzantine historical work written in the 6th century during the reign of Emperor Justinian I. In the sections commonly known as the Gothic War narrative, Procopius recounts the conflict between the Byzantine Empire and the Ostrogoths in Italy, offering one of the most detailed contemporary sources for the Gothic War (535–554 CE). He describes key figures such as the Gothic kings Theodahad, Vitiges, and Totila, as well as the Byzantine generals Belisarius and Narses, whose campaigns sought to reclaim Italy for the empire. Through vivid descriptions of sieges, battles, and political intrigue, Procopius’ Wars provides crucial insight into the decline of Ostrogothic power, the devastation of Italy during late antiquity, and the broader transformation of the post-Roman Mediterranean world. As a primary historical source on the Goths, the work remains essential for understanding the Byzantine–Gothic conflicts and the shifting balance of power in the early medieval period.

Isidore of Seville’s History of the Goths (Historia de regibus Gothorum, Vandalorum et Suevorum) is one of the most important early medieval historical sources for the Visigothic Kingdom in Hispania. Written in the 7th century by the scholar and bishop Isidore of Seville, the work traces the origins, rulers, and political development of the Goths, while also briefly recounting the histories of the Vandals and Suebi. The text was designed not only as a chronicle of Gothic kings but also as a statement of Visigothic identity, presenting the Goths as legitimate rulers of Spain after the fall of the Western Roman Empire. By combining classical historiographical traditions with Christian interpretation of history, Isidore’s narrative helped shape medieval perceptions of Gothic heritage, royal legitimacy, and the continuity between Roman and post-Roman rule in Iberia. Today, History of the Goths remains a key document for scholars studying the Early Middle Ages, Visigothic Spain, and the transformation of Roman provincial society into medieval kingdoms.