Orielton, Pembrokeshire Orielton, Pembrokeshire Orielton is a historic country house near Hundleton in Pembrokeshire, Wales. It is used as a field studies centre for environmental sciences. The first known house at Orielton was a fortified manor built by the Wyriott family in about 1200, which was mentioned by the historian Giraldus Cambrensis ( ). Orielton was the seat of the Owen baronets. The first Owen at Orielton was Sir Hugh Owen, the son of Owen ap Hugh (1518–1613), of Bodeon, near Llangadwaladr, Anglesey. Sir Hugh married Elizabeth Wirriot, who had inherited Orielton from her father George Wirriot. Sir Hugh left Orielton to
Pembrokeshire landscape was subject to considerable change as a result of ice ages; about 20,000 years ago the area was scraped clean of soil and vegetation by the ice sheet; subsequently, meltwater deepened the existing river valleys. While Pembrokeshire is not usually a seismically active area, in August 1892 there was a series of pronounced activities (maximum intensity: 7) over a six-day period. The Pembrokeshire coastline includes numerous bays and sandy beaches. The Pembrokeshire Coast National Park, the only park in the UK established primarily because of its coastline, occupies more than a third of the county. The park contains the