The Church of St Cadoc is medieval, of Old Red Sandstone with a stone tiled roof. The nave is quite long, ending in a battlemented tower and turret. The church was extensively restored in the nineteenth century, including work undertaken by John Prichard, following the collapse of the south wall.
The interior includes a large wall painting of the early fifteenth century depicting St George slaying the dragon. The Royal Commission on the Ancient and Historical Monuments of Wales describes a possible interpretation of the painting as being a reference to the defeat of Owain Glyndŵr by the English at the battles of Campston Hill (1404) and Grosmont (1405), which were fought near to Llangattock Lingoed.
References:Vufflens castle was built in 1425 on the site of a previous medieval castle by Henri de Colombier. It is the most significant example of a small group of fortified Romandy castles from the middle ages, characterised above all by its brick construction. In 1530, it was set on fire by Bernese troops. In 1641 it was acquired by the de Senarclens family. The castle is currently privately owned and cannot be visited.
A pleasant 30 minute-walk through the vineyards between Vufflens-le-Château and Denens, offers a stunning view of this magnificent castle, the lake and the Mont-Blanc.