Any info you guys have would be helpful
I will be doing the Irish kingdom of leinster (who hold dublin to begin with)



The provinces I will add are as follows:

Dublin
Cork
Coleraine
Galway

any info you have on these places will help, as will any historical "units"

The "High king" is Donnchad mac Domnaill Remair, and (again) anything you know about him will help (vices and virtues)