Niall Glúndub
Bibliography
Table:
Niall Glúndub

Cenél nEógain

Regnal titles

Preceded by

Domnall mac Áeda

King of Ailech
911–919
with Flaithbertach mac Domnaill (916–919)

Succeeded by

Fergal mac Domnaill

Preceded by

Flann Sinna

High King of Ireland
916–919

Succeeded by

Donnchad Donn

Reviewing the table information on 'Niall Glúndub' in the 'Bibliography' section, create one factual sentence about the highlighted cells, without adding extra data and format it within the following JSON object {"answer": "YOUR ANSWER"}.