Location and coordinates are for the approximate centre of Penmynydd within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Penmynydd, par. and vil., Anglesey, in SE. of co.- par., 3153 ac., pop. 406; vil., 4 miles E. of Llangefni; P.O.; Plas Penmynydd was the birthplace and residence of Owen Tudor, grandfather of Henry VII.