Glywysing

Glywysing was an early medieval Welsh kingdom located in southeastern Wales. It emerged during the Sub-Roman period following the collapse of Roman rule in Britain and persisted until its gradual fragmentation and absorption into other polities by the 11th century. Its territory generally encompassed modern Glamorgan and Gwent (Monmouthshire), and at times extended further west into what is now Carmarthenshire.

Etymology

The name Glywysing is traditionally believed to derive from Glywys, a legendary or semi-legendary 5th-century king who is said to have founded the kingdom. The suffix "-ing" is a common Old English or Brythonic element denoting "people of" or "belonging to," suggesting "the land/people of Glywys."

History

Origins and Early Period

Glywysing coalesced from the remnants of the Roman province of Britannia Secunda (or possibly Britannia Prima) in the post-Roman era, likely sometime in the 5th century. It developed from various smaller tribal territories that had existed in the region, such as those of the Silures. The kingdom was strategically important due to its fertile lands and coastal access.

Expansion and Conflicts

Throughout its existence, Glywysing was frequently involved in conflicts and alliances with its neighbours. To the west lay the kingdom of [[Dyfed]], and to the east and north were various Welsh and later Anglo-Saxon kingdoms, including the powerful [[Mercia]] and [[Wessex]]. The kingdom's history is often intertwined with that of its eastern sub-kingdom, [[Gwent]], which was sometimes autonomous and at other times subordinate to Glywysing. For much of its later history, Glywysing and Gwent were often ruled by members of the same extended royal family, occasionally unified under a single monarch.

Notable rulers associated with Glywysing include Meurig ap Tewdrig (7th century) and his grandson Arthfael ap Rhys (9th century), who are mentioned in various Welsh genealogies and charters. These rulers often faced pressure from Viking raids and increasing Anglo-Saxon influence.

Decline and Fragmentation

By the 10th and 11th centuries, Glywysing, like many other Welsh kingdoms, began to experience internal strife and external pressures. The kingdom's territories gradually became fragmented or absorbed into larger Welsh polities, particularly the emerging unified kingdom of [[Deheubarth]] to the west, or succumbed to increasing Norman influence. Following the Norman Conquest of England in 1066, the Normans began to push into Wales, establishing marcher lordships. The territory of Glywysing largely fell under the control of the Norman Lords of Glamorgan and Gwent, effectively ending its existence as an independent Welsh kingdom.

Geography

At its greatest extent, Glywysing encompassed the region between the River Loughor in the west and the River Wye in the east. This included the fertile Vale of Glamorgan, the industrial valleys to its north, and the lowland areas of Gwent. Its topography ranged from coastal plains and river valleys to uplands, providing a diverse economic base. The strategic rivers such as the Usk, Tawe, and Taff were significant for communication and defense.

Legacy

Although the kingdom of Glywysing ceased to exist politically, its name and historical significance endure. It is a crucial component of understanding the early medieval history and political landscape of Wales. Many historical sites and cultural traditions in the region have roots that stretch back to the Glywysing period, even if not directly attributable. The name itself is preserved in historical texts and academic studies of early Welsh history.