 A 17th century manuscript, (Llanstephan MS. 125) records a Welsh poem, "Cywydd i Fechell Sant".This describes how St Mechell was offered a gift of land in gratitude for a miraculous healing, to be demarked by the route of a released hare.The hare, under divine guidance, marked the full extent of what is now the parish of Llanfechell, on which he then founded the monastery.