Ireland

Malcolm IV, King of Scotland, was born

Malcolm IV (or Máel Coluim mac Eanric) (c. 1141 – December 9, 1165), King of Scots, was the eldest son of Henry of Scotland, 3rd Earl of Huntingdon (d. 1152) and Ada de Warenne, a daughter of William de Warenne, 2nd Earl of Surrey and Elizabeth de Vermandois. He succeeded his paternal grandfather David I of Scotland in 1153. Pious, frail, and chaste, he was known as Malcolm the Maiden, and died unmarried and childless in 1165.

Battle of the Standard at Northallerton in which King David I was defeated by the English.

Priory at Coldingham founded.

Patrick, Bishop of Dublin, dies in a shipwreck

Donatus (or Dunan), the first Bishop of Dublin, dies

Dúnán (died 6 May 1074) was the first bishop of Dublin, appointed under Dublin’s Hiberno-Norse kings. He is known also as Donatus or Donat.

England invades Wales.

After the collapse of the Roman Empire in Britain during 410, Wales became divided into several kingdoms. Attempts by the Anglo-Saxon tribes to invade these kingdoms failed due to the fierce resistance of its people and its mountainous terrain.

Malcolm III (Canmore) crowned.

MacBeth killed by Malcolm, son of Duncan I, at Lumphanan-Mar, Scotland.

Gruffydd ab Llewelyn defeats English army near Hereford

Duncan I of Scotland killed in battle by Macbeth at Pitgavney.

Duncan I (1001 - August 15, 1040) was a son of Crinan the Thane de Mormaer, lay abbot of Dunkeld, and Princess Bethoc of Scotland. He became King of the Scots in succession to his maternal grandfather Malcolm II in 1034, having previously ruled as rex Cumbrorum in Strathclyde. His accession is said to be the first example of inheritance of the Scottish throne in the direct line.