Dub mac Maíl Coluim (c. 928–967), called Dén ("the Vehement") and "the Black", was the king of Alba from 962. He was son of Malcolm I and succeeded to the throne when Indulf was killed.
While later chroniclers such as John of Fordun supplied a great deal of information on Dub's life and reign, and Hector Boece in his The history and chronicles of Scotland tell tales of witchcraft and treason, almost all of them are rejected by modern historians. There are very few sources for the reign of Dub, of which the Chronicle of the Kings of Alba and a single entry in the Annals of Ulster are the closest to contemporary.
The Chronicle records that during Dub's reign bishop Fothach, most likely bishop of St Andrews or of Dunkeld, died. The remaining report is of a battle between Dub and Cuilén, son of king Ildulb. Dub won the battle, fought "upon the ridge of Crup", in which Dunchad (Duncan), abbot of Dunkeld, sometimes supposed to be an ancestor of Crínán of Dunkeld, and Dubdon, the mormaer of Atholl, died.
The various accounts differ on what happened afterwards. The Chronicle claims that Dub was driven out of the kingdom.
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