Garn Fadryn, or Garn Madryn, is allegedly named after the granddaughter
of Vortigern. The mountain top and slopes on which the castle
sits are plastered with masonry debris. These unstable fragments
must date from prehistoric times up to the thirteenth century.
Currently it is very difficult to decide what is from which age on the
summit, but there would appear to have been a great hall and curtain
walls around 1188 when Giraldus noticed the castle when passing by.
Some parts of the ruins, like the collapsed curtain wall in the
photograph above, are therefore to be associated with Criccieth and Harlech castles.
Paul Martin Remfry