Defynnog

[1] The village (which has also been referred to historically as 'Devynnock') is located in the Brecon Beacons National Park one mile south of Sennybridge, beside the Afon Senni just south of its confluence with the River Usk and where the A4215 road meets the A4065.

[3][4] To the southwest of the village is "Y Gaer", a small oval hillfort with a sub-rectangular annex standing on a ridge.

[5] The Church of St Cynog contains an ancient stone with ogham inscriptions and is a grade I listed building.

The rectory within the church grounds was once the property of Moses Williams FRS and his inscription is to found on the beams of one of the attics.

The main building ( now the bar and restaurant ) dates to the early 1800s and was originally three separate cottages, all being homes for the workers at the nearby Tannery.