sentences:  Whatever its precise location, Dubhlinn probably served as the chief place of worship of the Uí Fergusa, a small and politically insignificant sept of the Uí Dúnlainge (an important confederation of Gaelic septs which monopolised the kingship of Leinster from 738–1042).A number of early sources refer to Abbots and Bishops of Dubhlinn, with little distinction between the two offices.Among these the following may be noted