Duncan I
Donnchada mac Crinain (Modern Gaelic: Donnchadh mac Crionain; 14 June 1001 — 14 August 1040) often known as Duncan I and nicknamed the Fighter (Scottish Gaelic: an Trodaiche) was the King of Scotland from 1035 until he was killed at the Battle of Pitgaveny in 1040. He was the son of Crínán of Dunkeld and Bethóc Ingen mac Maíl Coluim, the daughter of King Malcolm II.