Austrasia was a territory which formed the north-eastern section of the Kingdom of the Franks from the 6th to 8th centuries, ruled by the Frankish Merovingian and Carolingian dynasties during the Early Middle Ages. It was centred on the Meuse, Middle Rhine, and the Moselle rivers, and was the original territory of the Franks, including both the so-called Salian Franks and Ripuarian Franks, which Clovis I, King of the Franks (481–511) conquered after first taking control of the bordering part of Roman Gaul, which is sometimes described in this period as Neustria.
Ancient Basilica of Saint-Pierre-aux-Nonnains from the 4th century in Metz, capital of the kingdom of Austrasia
The Kingdom of the Franks, also known as the Frankish Kingdom, the Frankish Empire or Francia, was the largest post-Roman barbarian kingdom in Western Europe. It was ruled by the Frankish Merovingian and Carolingian dynasties during the Early Middle Ages. Francia was among the last surviving Germanic kingdoms from the Migration Period era.
The partition of the Frankish kingdom among the four sons of Clovis with Clotilde presiding, Grandes Chroniques de Saint-Denis (Bibliothèque municipale de Toulouse)
The political divisions of Gaul at the inception of Clovis's career (481). Note that only the Burgundian kingdom and the province of Septimania remained unconquered at his death (511).
The division of the Frankish kingdom on Clovis's death (511). The kingdoms were not geographic unities because they were formed in an attempt to create equal-sized fiscs. The discrepancy in size reveals the concentration of Roman fiscal lands.
The division of Gaul on Chlothar I's death (561). Though more geographically unified realms were created out of the second fourfold division, the complex division of Provence created many problems for the rulers of Burgundy and Austrasia.