Dunghal mac Flaithniadh, King of Umaill, died 776.
Dunghal's relationship to the previous king, Flannabhra, is unknown, as he does not seem to appear in the extant genealogies.
See also Óró Sé do Bheatha 'Bhaile
External links http://www.ucc.ie/celt/published/T100005C/
References
The History of Mayo, pp. 388–89, T.H. Knox, 1902.