Location and coordinates are for the approximate centre of Trefonen within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Trefonen, eccl. dist., Oswestry par., Shropshire, 3 miles SW. of Oswestry, pop. 1239; P.O.