"LLANVAIR-DISCOED, a parish in the upper division of the hundred of Caldicot, county Monmouth, 5 miles S.W. of Chepstow, its post town. It is situated near the forest of Wentwood, and on the road to Usk. The parish includes the hamlet of Dinham, and the remains of Dinham Castle, now a ruin overgrown with wood.
The church is dedicated to St. Mary.