ABERHAVESP (ABER-HAVESP), a parish, in the upper division of the hundred of NEWTOWN, county of MONTGOMERY, NORTH WALES, 3 miles (W. by N.) from Newtown, on the road to Machynlleth, comprising the upper and lower divisions, and containing 535 inhabitants. This place takes its name from its situation near the confluence of the river Havesp with the Severn, and is distinguished chiefly by its proximity to the Roman road from Caer-Sws to Mediolanum, which passed through the parish, and of which vestiges may still be traced on a farm called Llwyd Coed. From the rectory-house there is a fine view of the surrounding country, the scenery of which is agreeably and richly diversified, extending over the beautiful Vale of the Severn, and embracing the numerous windings of that noble river, the prospect being bounded in the distance by the Plinlimmon and other mountains. The weaving of flannel is carried on to a moderate extent, affording employment to such of the inhabitants as are not occupied in agriculture. The living is a discharged rectory, in the archdeaconry and diocese of St. Asaph, rated in the king's books at £9. 6. 8., and in the patronage of the Bishop of St. Asaph. The church, dedicated to St. Gwynnog, is an ancient structure, in the early style of English architecture, appropriately accommodated to the use of the inhabitants, and pleasantly situated near the river. There are places of worship for Baptists and Independents: a parochial and a Sunday school are supported by subscription. In the south-eastern part of the parish there is a medicinal spring, called the Black Well, which is considered highly efficacious in scrofulous diseases, and is much resorted to by the inhabitants of the parish and neighbourhood. The average annual expenditure for the support of the poor amounts to £427. 13.