Forden Gaer, Y Gaer and Lavrobrinta are respective English, Welsh and possible Latin names for the Roman fort in the township of Thornbury, in the parish of Forden, in the old county of Montgomeryshire, which now forms part of Powys, Wales .
Forden | The Gaer House | Moel y Gaer, Llanbedr | Moel y Gaer, Bodfari |