LLANTILLIO-GROSSENNY, a parish in the upper division of the hundred of SKENFRETH, county of MONMOUTH, 7 miles ("W. N. W.) from Monmouth, containing 710 inhabitants. The living is a vicarage, in the archdeaconry and diocese of Llandaff, rated in the king's books at £10. 10. 5., and in the patronage of the Chapter of Llandaff. The church, dedicated to St. Teilaw, is a handsome structure of stone, with a tower surmounted by a lofty spire, and standing on part of the site of an ancient intrenchment. There is a considerable endowment, arising from bequests by James and John Powell, in 1645, for educating and apprenticing children. On the crest of an eminence, about one mile and a half from the village, are the stately ruins of White castle, encompassed by a deep moat, forming an irregular oval two hundred and eighty-six yards in circuit.