Glasbury (), also known as Glasbury-on-Wye, is a village and community in Powys, Wales. The village lies at an important crossing point on the River Wye, connecting the historic counties of Brecknockshire and Radnorshire, and is located just outside the Brecon Beacons National Park, north of the Black Mountains. The village is split between the communities of Glasbury and Gwernyfed. The nearest town is Hay-on-Wye, some to the north east. The nearest city is Hereford in England, some to the east. Glasbury is a popular location for river fishing, canoeing and kayaking. The population of Glasbury community in Radnorshire was 994 (census 2011), in 1841 it was 838. History Saint Cynidr and early settlement The early village grew north of the river crossing, where a church was built dedicated to St Cynidr, a 6th-century bishop said to be buried in Glasbury. The name 'Glasbury' derives from the Welsh 'clas', which signifies a glebe or church land. St Cynidr's name is retained in the small settlement of Ffynnon Gynydd to the north of the village, where Cynidr's well is still visible. From the 6th century to the 11th century, Glasbury formed part of the Kingdom of Brycheiniog, ruled from nearby Talgarth. Bishops of Glasbury The importance of this early church was such that Glasbury was made a diocese. A list of the bishops of Glasbury still exists and gives the last bishop as Tryferyn, who died in 1055. The diocese was subsumed by the bishopric of Glamorgan, later Llandaff. Battle of Glasbury In the mid 11th century, the Welsh kingdoms (including Brycheiniog) were temporarily united under Gruffydd ap Llywelyn, King of Wales. On 16 June 1056, a battle was fought at Glasbury between an English force, led by Bishop Leofgar of Hereford, and a Welsh force led by Gruffydd ap Llywelyn, at which the warrior bishop was killed. Marcher lordship After the Norman invasion, the kingdom of Brycheiniog (including Glasbury) was conquered or otherwise acquired by Bernard de Neufmarché, one of the Marcher Lords. In 1088, he presented the Manor and church of Glasbury to the Abbey of St Peter's at Gloucester and the parish church of St. Cynidr was rededicated to St Peter. The patronage of the church was later transferred to the Bishop of Gloucester and subsequently to the Bishop of St David's, with whom it remains today. In 1144, as part of an exchange, the lordship of the