Elaborate genealogies showed the descent of the various Uí Néill, while allies and favoured clients descended from Niall's brothers or other kinsmen.
[3] The dates claimed for Lóegaire mac Néill, "great pagan Emperor of the Irish" and adversary of Saint Patrick in Muirchiu and Tirechán's 7th century lives, may make him an unlikely son of Niall.
[4] Diarmait mac Cerbaill, apical ancestor of the Síl nÁedo Sláine and Clann Cholmáin, the leading southern branches of the Uí Néill, is presented in the genealogies as the grandson of Niall's son Conall Cremthainne, but this is doubtful.
[5] As for Coirpre, he is called a son of Niall in one of the earliest surviving sources, Tirechán's life of Saint Patrick.
[6] Medieval Irish traditions claimed that the lands of the Uí Néill were conquered by Niall of the Nine Hostages and his sons, together with their allies.
[9] In a year given as 485, Coirpre was credited with a victory at Grainert, perhaps modern Granard, where the chief church of Cenél Coirpri Mór of Tethbae was in later times.
[11] Cenél Coirpre were associated with both Tailtiu and Granard in the earliest writings, but there is nothing in the annals to explain an early link with Carbury which could be as late as the twelfth century.
[16] In earlier historical times, Cenél Coirpri may have been of sufficient importance to attract the attention of largely hostile writers.
Diarmait's descendants, Clann Cholmáin and the Síl nÁedo Sláine, probably replaced the kindreds of Coirpre and Fiachu as the dominant families of the Irish midlands.