The historical evidence for Gabrán is limited to the notice of his death in the Irish and Welsh annals.[3] It is possible that Gabrán's death should be linked to a migration or flight from Bridei mac Maelchon, but this may be no more than coincidence.[4]
Lane, Alan & Campbell, Ewan, Dunadd: An early Dalriadic capital, Oxbow Books, Oxford, 2000. ISBN1-84217-024-4
Sharpe, Richard, "The thriving of Dalriada" in Simon Taylor (ed.), Kings, clerics and chronicles in Scotland 500–1297. Four Courts, Dublin, 2000. ISBN1-85182-516-9