Iddawc Cordd Prydain The treachery of Iddawc or Eiddilig Cordd
Prydain, (possibly Gordd Prydain, the hammer of Britain) is the
subject of more than one of the Triads where he is said to have
betrayed Arthur by divulging his plans. The meeting between him
and Medrawd, with their men at Nanhwynain before the battle of
Camlan, is spoken of as one of the three traitorous meetings of
the Island, for there they plotted the betrayal of Arthur, which
occasioned the strength of the Saxons. In another place the
Saxon ascendancy is attributed to Iddawc's magical arts, which
there were not warriors in the Island capable of withstanding,
so that the Saxons prevailed. This magic, for which he is also
greatly celebrated, was taught him by Rhuddlwm Gawr. The Triad
which ranks Iddawc Cordd Prydain amongst the enchanters was
translated into verse by Davydd ap Gwilym in his poem,
'Cyffelybiad rhwng Morfudd a'r Delyn'. The poem speaks of Iddawc
as an Irishman. Iddawc was also, with Trystan and Gweirwerydd
Vawr, one of the three