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 St Martin which was an extremely popular pilgrimage site for the sick. Although St Martin was a bishop and confessor, the hymn was gradually extended and came to be used for all confessors, including non-bishops in the Roman Breviary and other Latin liturgical rites. In the reforms following the Second Vatican Council, the 1974 Liturgy of the Hours has attempted to restore the hymn for primary use with bishop confessors, however it retains its more general usage where the pre-1974 Liturgies (such as the Roman Breviary) are used. Iste confessor Domini colentes <poem> 1 Iste confessor Domini colentes 2 Qui