Pangur Bán
Deconstructed
I vote you create a Gael mod, and ignore these political divisions which divide the ancient Gaelic lands. Niall Noigíallach and Roibert a Briuis could be the two leaders. The latter is often thought of as a Norman, but his mother was a Gael, and he obviously thought Gaelic to be his first language. Both are appropriate for large-scale pan-Gaelic activities, unlike Brian Bóruma or his Scottish equivalent Máel Coluim II, who both largely confined themselves to their own islands.