Power and Hardship
Tairdelbach’s position rested on the political transformation that followed the death of Diarmait mac Maíl na mBó in 1072. Tairdelbach had inherited Munster and secured influence over Dublin, Leinster, Osraige and parts of the midlands, although this was not a united kingdom governed through permanent institutions. His supremacy depended on hostages, tribute, personal alliances, military expeditions and the placement of trusted relatives in strategic kingships. His son Muirchertach had been installed as king of Dublin in 1075, giving the dynasty access to the ships, craftsmen, trade and revenues of Ireland’s leading port.