Macbeth, King of Scotland Gille Coemgáin. He subsequently married Gille Coemgáin's widow, Gruoch, although they had no children together. In 1040, Duncan I launched an attack into Moray and was killed in action by Macbeth's troops. Macbeth succeeded him as King of Alba, apparently with little opposition. His 17-year reign was mostly peaceful, although in 1054 he was faced with an English invasion, led by Siward, Earl of Northumbria, on behalf of Edward the Confessor. Macbeth was killed at the Battle of Lumphanan in 1057 by forces loyal to the future Malcolm III. He was buried on Iona, the traditional resting place of Scottish
Iste confessor To Him be health, honor and virtue // who always shining on the heavenly throne </poem> Iste confessor Domini sacratus <poem> 1 Iste confessor Domini sacratus, // Festa plebs cuius celebrat per orbem, 2 Qui pius, prudens, humilis, pudicus, // Sobrius, castus fuit, et quietus, 3 Ad sacrum cuius tumulum frequenter, // Membra languentum modo sanitati, 4 Unde nunc noster chorus in honorem // Ipsius, hymnum canit hunc libenter, 5 Sit salus illi, decus, atque virtus, // Qui supra cæli residens cacumen, </poem> This holy confessor of the Lord <poem> 1 This holy confessor of the Lord // the feast