Their story
Dubricius was one of the great teachers of the Britons in what is now South Wales. He founded two schools of sacred learning on the river Wye, at Hentlan and Mochrhes, where St Samson, St Theliau and many others were trained. Butler says that for four years he had a thousand students at once.
According to the tradition Butler follows, St Germanus consecrated him the first archbishop of Llandaff about 444. He later became archbishop of Caerleon and gave up that office to St David at the synod of Brevi. He spent his last years on the island of Bardsey (or Euly) off Caernarvonshire, where he died and was buried.