TIDENHAM, a parish forming, with the parish of Wollastone, a detached portion of the hundred of WESTBURY, county of GLOUCESTER, 2 miles (N. E. by N.) from Chepstow, containing, with the chapelry of Lancaut, 1102 inhabitants. The living is a discharged vicarage, in the archdeaconry and diocese of Gloucester, rated in the king's books at £7. 14., and in the patronage of-Davis, Esq. The church is dedicated to St. Mary. The parish occupies a considerable tongue of land, formed by the rivers Severn and Wye, which unite at its southern extremity.