kingdom of Leinster

(Ulaidh), Meath (Midhe), Leinster (Laighin), Munster (Mumhain), and Connaught (Connacht).

…as well as that of Leinster, which was bounded by the peninsula of Howth and the River Liffey on the north and by the Slieve Bloom Mountains on the west. In the early Middle Ages, kings of Leinster fought constantly against the Uí Néill, the line of high kings whose…