|Plas Gunter House - wiki|
"History enthusiasts and interested members of the community gathered at St Michael’s Centre on Wednesday, 23 January, to hear the results of an archeological survey of Abergavenny’s 17th century Plas Gunter Mansion, aimed at unlocking more of its historical secrets.
The Grade II* listed building, bought for the community by The Welsh Georgian Trust in 2017, is of historical importance because of the discovery of a secret chapel in the attic where Catholics worshipped during a period when it was illegal and dangerous to do so.It is the only known recusant chapel that exists in Wales and one of the best surviving examples in the whole of Britain.
One of the priests who led the secret services was denounced to Parliament by priest-hunter, John Arnold of Llanfihangel Court. He was arrested, hanged, drawn and quartered at Usk on 27th August, 1679. Father – later Saint – David Lewis was Wales’ last Catholic martyr."
For the whole article see:- https://www.plasguntermansion.org.uk/first-plas-gunter-mansion-survey-raises-more-questions-about-the-house-s-hidden-secrets.