1911 Encyclopædia Britannica/Ida

IDA (d. 559), king of Bernicia, became king in 547, soon after the foundation of the kingdom of Bernicia by the Angles. He built the fortress of Bebbanburh, the modern Bamborough, and after his death his kingdom, which did not extend south of the Tees, passed in turn to six of his sons. The surname of “Flame-Bearer,” sometimes applied to him, refers, however, not to Ida, but to his son Theodric (d. 587).

See J. R. Green, Making of England, vol. i. (London, 1897).