Griogal Cridhe

Griogal Cridhe (literally "Gregor of the Heart", or "Beloved Gregor") is a traditional Scottish lament and lullaby that was composed in Gaelic by Mór Chaimbeul ("Marion Campbell"), the widow of Griogair Ruadh Mac Griogair ("Gregor the Red MacGregor") (1541–1570), the chief of the Clan MacGregor of Glen Strae, who was executed at Taymouth Castle, Perthshire, on April 7, 1570.
Lyrics.
There are many versions of the lyrics (the untranslated words are vocables):