PORTBURY, a parish in the hundred of PORTBURY, county of SOMERSET, 6 miles (W. by N.) from Bristol containing 594 inhabitants. The living is a discharged vicarage, with that of Tickenham annexed, in the archdeaconry of Bath, and diocese of Bath and Wells, rated in the king's books at & 10. 11.3., and in the patronage of the Bishop of Bristol. The church is dedicated to St. Mary. Portbury is a very ancient place, and gives name to the hundred. It was occupied by the Romans, as is evident from the coins and foundations discovered here, as well as from traces of the Roman road being still visible through the parish to the sea at Portshead, whence there was a passage to Caerleon, anciently Isca Silurum. Here was formerly a cell to the Augustine priory of Breamore, Hants.