"BRYNGWYN, a parish in the lower division of the hundred of Ragland, in the county of Monmouth, 6 miles to the W. of Monmouth. Ragland is its post town. It is not far from the Coleford, Monmouth, and Usk railway. The living is a rectory* in the diocese of Llandaff, value £200, in the gift of the Earl of Abergavenny. The church is dedicated to St. Peter. There are charitable endowments for the benefit of the poor, amounting to about £10 a year."
[Description(s) from The National Gazetteer of Great Britain and Ireland (1868)
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 given towards the end of each entry are those of the informants. Check with Gwent RO to see what extant records are held, and possible names of chapels/churches built after 1851.
Bryngwyn parish; Statistics; Area 1494 acres; Population 159 males, 154 females, total 313
Bryngwyn Parish Church - Attendance - morning 72+22 scholars, afternoon 90+8 scholars 2 services in English William Crawley, Rector
Kain, R.J.P., Oliver, R.R., Historic Parishes of England and Wales: an Electronic Map of Boundaries before 1850 with a Gazetteer and Metadata [computer file]. Colchester, Essex: History Data Service, UK Data Archive [distributor], 17 May 2001. SN: 4348. Here is a gazetteer/finding aid plus a set of overview maps to accurately identify the position of parishes within the county.
You can see maps centred on OS grid reference SO390093 (Lat/Lon: 51.778984, -2.885629), Bryngwyn which are provided by: