The Roman withdrawal left Britain to fend for itself
When the Roman legions were recalled to Gaul in 407, the province of Britannia was left vulnerable. What followed was not just a simple conquest, but a complex era of shifting kingdoms, mercenary uprisings, and a profound transformation of Roman culture into something entirely new.
The period known as Sub-Roman Britain began with the departure of troops under Constantine III in 407 and lasted until the Battle of Deorham in 577. The transition was marked by a sharp decline in urban life and the disappearance of the Roman villa system. While some sites like Londinium and Wroxeter maintained importance, the era is characterized by a move away from stone architecture toward more durable, less permanent materials. However, archaeology reveals that Roman influence did not vanish overnight; at Chedworth, a mosaic was even created in the middle of the 5th century.
Historical records from this era are scarce and often biased. The monk Gildas, writing around 540, provided a 'jeremiad'—a polemic intended to warn rulers against sin. While his work is a vital contemporary source, it is heavily shaped by his religious purpose and contains historical inaccuracies. Later, in the 8th century, the monk Bede attempted to reconstruct this history, though his account was written from an anti-Briton perspective. This lack of objective documentation has led to much debate, with some calling the era the 'Dark Ages' and others preferring 'Late Antiquity.'
The political landscape was a fragmented mosaic of Celtic kingdoms and emerging Germanic settlements. Groups like the Bryneich and Dumnonia existed alongside the advancing Saxons. The era was defined by intense power struggles, including the use of Saxon mercenaries by leaders like Vortigern, which eventually backfired. While popular legend often focuses on the 'Age of Arthur' and the Battle of Mons Badonicus around 490, the true history lies in the complex social shifts, such as the gradual adoption of Anglo-Saxon culture by families in places like Wasperton, Warwickshire.
Source: Sub-Roman Britain
