MARYCHURCH-ST, a parish, in the union of BRIDGEND-AND-COWBRIDGE, hundred of COWBRIDGE, county of GLAMORGAN, SOUTH WALES, 2 miles (S. S. E.) from Cowbridge; containing 154 inhabitants. This parish, which, from the dedication of its church to St. Mary, is by the Welsh Called Eglwys-Vain, is pleasantly situated in the south-eastern part of the county, on the right bank of the river Thaw, and comprehends a moderate extent of arable and pasture land, by far the greater portion inclosed and in a state of cultivation. The soil, of which the substratum is limestone, is in general fertile; and the inhabitants are principally employed in agriculture. The surrounding scenery is pleasingly wooded and richly diversified, and the adjacent country presents many features of pieturesque character. The living is a discharged rectory, united with that of Llandough, and rated in the king's books at £5. 6. 8.: the church is not remarkable for any architectural details. William Howell, in 1802, invested £20 in the Cardiff district turnpike trust, for the benefit of the poor, the interest of which is annually distributed among them; and a Sunday school, chiefly supported by the clergyman, is attended by about 40 males and females.