Other current and historical names
Location and coordinates are for the approximate centre of Undy within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Undy, par., Monmouthshire, on the coast, 1 mile E. of Magor sta. and 7 miles SW. of Chepstow, 1717 ac. land and 2000 water, pop. 439.