The first of these, Triad 33, holds one Heidyn son of Enygan or Heiden son of Efengad, possibly a ruler of the "Old North", responsible for a fatal hatchet-blow on Aneirin's head.
A primeira destas, tríade 33, contén un Heidyn fillo de Enygan ou Heiden fillo de Efengad, posibelmente un líder do "Vello Norte", responsábel dun golpe fatal de machado na cabeza de Aneirin.