Donnchad mac Aedacain (died 867) was a King of Uisnech

Uisnech

The Hill of Uisneach, or Ushnagh, also Uisnech , formerly regarded as the centre of Ireland, is a historical site in County Westmeath . The 182 metre hill lies on the north side of the R390 road, 8 km east of the village of Ballymore, beside the village of Loughanavally...

 and Mide of the Clann Cholmáin

Clann Cholmáin

Clann Cholmáin is the name of the dynasty descended from Colmán Mór , son of Diarmait mac Cerbaill. Part of the Southern Uí Néill — they were the kings of Mide — they traced their descent to Niall Noígiallach and his son Conall Cremthainne.Related dynasties descended through Conall...

. He was the grandson of the High King Conchobar mac Donnchada

Conchobar mac Donnchada

Conchobar mac Donnchada was High-King of Ireland with opposition between 819 and 833. Conchobar was the son of Donnchad Midi, high-king of Ireland ; his mother was Fuirseach, a noblewoman of the Dál nAraidi. Conchobar married Land, daughter of the former High-King Áed Oirdnide...

 (died 833). He ruled as King of Mide from 864 to 877.

He came to the throne after the blinding of Lorcán mac Cathail

Lorcán mac Cathail

Lorcán mac Cathail was a King of Uisnech and Mide of the Clann Cholmáin. Lorcán ruled in as King of Mide from 862-864.His exact dynastic affiliations are unknown. The death of a certain Cathal mac Conchobair is mentioned in the annals in 843. If this was his father he may have been the grandson...

 by the high king Áed Findliath (died 877). Donnchad was deceitfully killed by his rival among the Clann Cholmáin, Flann Sinna

Flann Sinna

Flann Sinna was the son of Máel Sechnaill mac Máele Ruanaid of Clann Cholmáin, a branch of the southern Uí Néill. He was King of Mide from 877 onwards and is counted as a High King of Ireland...

in 877 who then became king.

External links

• CELT: Corpus of Electronic Texts at University College Cork