Dallán Forgaill (c 530 - 598)

Eochaid Mac Colla, better known as Saint Dallan or Dallán Forgaill, was an early Christian Irish poet known as the writer of the "Amra Choluim Chille" ("Elegy of Saint Columba") and, traditionally, "Rop Tú Mo Baile" ("Be Thou My Vision").