Suggests that CIG represents a reworking of Erchoitmed Ingine Gulide by Brian Ó Gnímh some time after 1567, commemorating the military and political achievements of the MacDonnells of Antrim following the Battle of Glenshesk (1565), and commenting on the shared fate and status of patron and ollamh. Cf. C. Breatnach, in Ériu 41 (1990), pp. 37-60, and 43 (1992), pp. 159-176.