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Wales in the Middle Ages

Period of history

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Early Middle Ages: 411–1066

When the Roman garrison of Britain was withdrawn in 410, the various British states were left self-governing. Evidence for a continuing Roman influence after the departure of the Roman legions is provided by an inscribed stone from Gwynedd dated between the late 5th and mid-6th centuries commemorating a certain Cantiorix who was described as a citizen (cives) of Gwynedd and a cousin of Maglos the magistrate (magistratus). There was considerable Irish colonisation in Dyfed, where there are many stones with ogham inscriptions. Wales had become Christian under the Romans, and the Age of the Saints (approximately 500–700) was marked by the establishment of monastic settlements throughout the country, by religious leaders such as Saint David, Illtud and Saint Teilo.

One of the reasons for the Roman withdrawal was the pressure put upon the empire's military resources by the incursion of barbarian tribes from the east. These tribes, including the Angles and Saxons, gradually took control of eastern and southern Britain. At the Battle of Chester in 616, the forces of Powys and other British kingdoms were defeated by the Northumbrians under Æthelfrith, with king Selyf ap Cynan among the dead. It has been suggested that this battle finally severed the land connection between Wales and the kingdoms of the Hen Ogledd ("Old North"), the Brittonic-speaking regions of what is now southern Scotland and northern England, including Rheged, Strathclyde, Elmet and Gododdin, where Old Welsh was also spoken. From the 8th century on, Wales was by far the largest of the three remnant Brittonic areas in Britain, the other two being the Hen Ogledd and Cornwall.

Wales was divided into a number of separate kingdoms, the largest of these being Gwynedd in northwest Wales and Powys in the east. Gwynedd was the most powerful of these kingdoms in the 6th and 7th centuries, under rulers such as Maelgwn Gwynedd (died 547) and Cadwallon ap Cadfan (died 634/5) who in alliance with Penda of Mercia was able to lead his armies as far as the Kingdom of Northumbria and control it for a period. Following Cadwallon's death in battle the following year, his successor Cadafael Cadomedd ap Cynfeddw also allied himself with Penda against Northumbria but thereafter Gwynedd, like the other Welsh kingdoms, was mainly engaged in defensive warfare against the growing power of Mercia.

Rise of Gwynedd: 700–1066

Powys as the easternmost of the major kingdoms of Wales came under the most pressure from the English in Cheshire, Shropshire and Herefordshire. This kingdom originally extended east into areas now in England, and its ancient capital, Pengwern, has been variously identified as modern Shrewsbury or a site north of Baschurch. These areas were lost to the kingdom of Mercia. The construction of the earthwork known as Offa's Dyke (usually attributed to Offa of Mercia in the 8th century) may have marked an agreed border.

For a single man to rule the whole country during this period was rare. This is often ascribed to the inheritance system practised in Wales. All sons received an equal share of their father's property (including illegitimate sons), resulting in the division of territories. However, the Welsh laws prescribe this system of division for land in general, not for kingdoms, where there is provision for an edling (or heir) to the kingdom to be chosen, usually by the king. Any son, legitimate or illegitimate, could be chosen as edling and there were frequently disappointed candidates prepared to challenge the chosen heir.

The first to rule a considerable part of Wales was Rhodri the Great, originally king of Gwynedd during the 9th century, who was able to extend his rule to Powys and Ceredigion. On his death his realms were divided between his sons. Rhodri's grandson, Hywel Dda (Hywel the Good), formed the kingdom of Deheubarth by joining smaller kingdoms in the southwest and had extended his rule to most of Wales by 942. He is traditionally associated with the codification of Welsh law at a council which he called at Whitland, the laws from then on usually being called the "Laws of Hywel". Hywel followed a policy of peace with the English. On his death in 949 his sons were able to keep control of Deheubarth but lost Gwynedd to the traditional dynasty of this kingdom.

Wales was now coming under increasing attack by Vikings, particularly Danish raids in the period between 950 and 1000. According to the chronicle Brut y Tywysogion, Godfrey Haroldson carried off two thousand captives from Anglesey in 987, and the king of Gwynedd, Maredudd ab Owain is reported to have redeemed many of his subjects from slavery by paying the Danes a large ransom.

Gruffydd ap Llywelyn was the only ruler to be able to unite the Welsh kingdoms under his rule. Originally king of Gwynedd, by 1055 he was ruler of almost all of Wales and had annexed parts of England around the border. However, he was defeated by Harold Godwinson in 1063 and killed by his own men. His territories were again divided into the traditional kingdoms.

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