Other current and historical names
Location and coordinates are for the approximate centre of Llanddewi Rhydderch within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Llanthewy-Rytherch, par., Monmouthshire, in N. of co., 3 miles SE. of Abergavenny, 2201 ac., pop. 353; P.O., called Llandewi-Rhydderch.