The singer, Treasa Ní Mhiolláin (which could be Anglicised as ‘Theresa Mullin’), is a native Irish speaker from Inis Mór (‘Inishmore’), one of the Aran Islands off the western coast of Ireland.
A woman comes to Gregory’s castle, pleading to be let in; she is either pregnant or with a newborn son. His mother turns her away; sometimes she tells her that he went to sea, and she goes to follow him and dies in shipwreck. Gregory wakes and says he dreamed of her. He chases her, finds her body, and dies.
Alternate titles of “The Lass of Roch Royal” include “Lord Gregory”, “Fair Anny”, “Oh Open the Door Lord Gregory”, “The Lass of Loch Royal” “The Lass of Aughrim”, and “Mirk Mirk”.