Kingdom of Naomh Dubhí

The Kingdom of Naomh Dubhí was a Gretian puppet state in the northern regions of the Confederation of Garman, comprised of County Cork, County Wicklow, County Galway, County Sneachta, and County Fethard, as well as claiming control of Gretian occupied Garmanese colonies. 
The puppet state was ruled by Caiomhe ó Mhuirneacháin, the sister of deceased Saoirse ó Mhuirneacháin, who ruled Fearna and sparked the Garmanese Civil War. The hope was that having a major proponent of Northern independence would rally some support from Naomh Dubhí sympathizers did not materialize, and for two years the Kingdom struggled to maintain control of it's own territory. 
For the most part of it's history, the Kingdom only controlled it's cities, The Golden City, Dublin, Tagoat, and it's capital Fearna, with the countryside descending into chaos and rebellions. An inability to resupply troops and a reluctant Gretian Empire now needing troops to defend against the Pandrosi lead to a slow collapse of the Kingdom culminating in the May Revolution. The Kingdom was declared legally defunct on June 1st, 269.
The collapse of the Kingdom showed that there had been a fundamental shift in the north's view of the south, and that the Confederation had become much more united than previously thought.