"KÎLGWYN (CÎL-GWYN) a chapelry in the parish of NEVERN, hundred of KEMMES, county of PEMBROKE, SOUTH WALES, 2 1/2miles (S.S.E.) from Newport. The population is returned with the parish. The chapel is dedicated to St. Mary. It is situated at the foot and near the south-eastern declivity of Carn Ingli mountain and common, on the former of which are some ancient carneddau." [From A Topographical Dictionary of Wales (S. Lewis, 1833).]
Some church and chapel data from The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 1, South Wales. Ed. by I.G Jones, & D. Williams. UWP, Cardiff, 1976. The names are those of the informants
Kilgwyn (endorsed Nevern Parish Church) Consecrated: it is nor known. Marriages were about to be performed here years ago, but not now "See an account of Kilgwyn Church in Nevern Church return" John Jones MA, Vicar of Nevern
Parish entry for Nevern with Cilgwyn and Bayvil from The Welsh Church Year Book, 1929 (Cd by Archive CD Books).
St Brynach & St Mary (Cilgwyn) & Parish Church (Bayvil)