Maponos (“Great Son”) is mentioned in Gaul at Bourbonne-les-Bains (CIL 13, 05924) and at Chamalières (RIG L-100) but is attested chiefly in the north of Britain at Brampton, Corbridge (ancient Coria), Ribchester (In antiquity, Bremetenacum Veteranorum) and Chesterholm (in antiquity, Vindolanda).
•
The theme of Maponos son of Matrona (literally, child of mother) and the development of names in the Mabinogi from Common Brythonic and Gaulish theonyms has been examined by Hamp (1999), Lambert (1979), and Meid (1991).