Saint Twrog's Church is in the village of Maentwrog in the Welsh county of Gwynedd, lying in the Vale of Ffestiniog, within the Snowdonia National Park. It is in the Deanery of Ardudwy. It is designat

Saint Tanwg is the patron saint of Llandanwg, Gwynedd, Wales. He is presumed to be the founder of St Tanwg's Church, the small church at Llandanwg near Harlech, although the presence of an inscribed s