# Donn Cothaid mac Cathail

Donn Cothaid mac Cathail, King of Connacht, died 773.
Donn Cothaid was a King of Connacht from the Ui Fiachrach Muaidhe branch of the Connachta. He was the great-grandson of Dúnchad Muirisci mac Tipraite (died 683). He was the last member of this branch to hold the throne of Connacht and ruled from 768 to 773.

## Descendants

Donn Cothaid's son, Connmhach mac Duinn Cothaid (died 787), was a later king of the Ui Fiachrach. A grandson, Dubda mac Conmac, was the grandfather of Aed Ua Dubhda, eponym and ancestor of the O'Dowd Chiefs of the Name.

## Family tree

| | | | | Fidach, King of Munster | Fidach, King of Munster | Fidach, King of Munster | Fidach, King of Munster | Fidach, King of Munster | Fidach, King of Munster | | | | | | | | | | | | | | | See Connachta | See Connachta | See Connachta | See Connachta | See Connachta | See Connachta | | | | | | |
| Crimthann mac Fidaig King of Munster and High King of Ireland | Crimthann mac Fidaig King of Munster and High King of Ireland | Crimthann mac Fidaig King of Munster and High King of Ireland | Crimthann mac Fidaig King of Munster and High King of Ireland | Crimthann mac Fidaig King of Munster and High King of Ireland | Crimthann mac Fidaig King of Munster and High King of Ireland | | | Mongfind | Mongfind | Mongfind | Mongfind | Mongfind | Mongfind | | | | | | | | | | | Eochaid Mugmedon | Eochaid Mugmedon | Eochaid Mugmedon | Eochaid Mugmedon | Eochaid Mugmedon | Eochaid Mugmedon | | | | | | | Cairenn | Cairenn | Cairenn | Cairenn | Cairenn | Cairenn |
| | | | | | | | | Brion | Brion | Brion | Brion | Brion | Brion | | | Fiachrae | Fiachrae | Fiachrae | Fiachrae | Fiachrae | Fiachrae | | | Ailill | Ailill | Ailill | Ailill | Ailill | Ailill | Niall Noígíallach, died c.450. | Niall Noígíallach, died c.450. | Niall Noígíallach, died c.450. | Niall Noígíallach, died c.450. | Niall Noígíallach, died c.450. | Niall Noígíallach, died c.450. |
| | | | | | | | | See Uí Briúin | See Uí Briúin | See Uí Briúin | See Uí Briúin | See Uí Briúin | See Uí Briúin | | | (Uí Fiachrach) | (Uí Fiachrach) | (Uí Fiachrach) | (Uí Fiachrach) | (Uí Fiachrach) | (Uí Fiachrach) | | | See Uí nAilello | See Uí nAilello | See Uí nAilello | See Uí nAilello | See Uí nAilello | See Uí nAilello | See Uí Néill | See Uí Néill | See Uí Néill | See Uí Néill | See Uí Néill | See Uí Néill | | | | | | |
| | | | | | | | | Amalgaid King of Connacht | Amalgaid King of Connacht | Amalgaid King of Connacht | Amalgaid King of Connacht | Amalgaid King of Connacht | Amalgaid King of Connacht | | | Nath Í King of Connacht | Nath Í King of Connacht | Nath Í King of Connacht | Nath Í King of Connacht | Nath Í King of Connacht | Nath Í King of Connacht | | | Macc Ercae | Macc Ercae | Macc Ercae | Macc Ercae | Macc Ercae | Macc Ercae | | | | | | |
| | | | | | | | | Fiachnae | Fiachnae | Fiachnae | Fiachnae | Fiachnae | Fiachnae | | | Ailill Molt, d.482. King of Connacht and probably High King of Ireland | Ailill Molt, d.482. King of Connacht and probably High King of Ireland | Ailill Molt, d.482. King of Connacht and probably High King of Ireland | Ailill Molt, d.482. King of Connacht and probably High King of Ireland | Ailill Molt, d.482. King of Connacht and probably High King of Ireland | Ailill Molt, d.482. King of Connacht and probably High King of Ireland | | | Echu | Echu | Echu | Echu | Echu | Echu | | | | | | |
| | | | | | | | | (Uí Fiachrach Muaidhe) | (Uí Fiachrach Muaidhe) | (Uí Fiachrach Muaidhe) | (Uí Fiachrach Muaidhe) | (Uí Fiachrach Muaidhe) | (Uí Fiachrach Muaidhe) | | | | | | | | | | | See Uí Fiachrach Aidhne | See Uí Fiachrach Aidhne | See Uí Fiachrach Aidhne | See Uí Fiachrach Aidhne | See Uí Fiachrach Aidhne | See Uí Fiachrach Aidhne | | | | | | | | | | | | |
| | | | | | | | | Elgach | Elgach | Elgach | Elgach | Elgach | Elgach | | | ? | ? | ? | ? | ? | ? | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | Maeldubh | Maeldubh | Maeldubh | Maeldubh | Maeldubh | Maeldubh | | | Eógan Bél King of Connacht | Eógan Bél King of Connacht | Eógan Bél King of Connacht | Eógan Bél King of Connacht | Eógan Bél King of Connacht | Eógan Bél King of Connacht | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | Tipraite | Tipraite | Tipraite | Tipraite | Tipraite | Tipraite | | | Ailill Inbanda King of Connacht | Ailill Inbanda King of Connacht | Ailill Inbanda King of Connacht | Ailill Inbanda King of Connacht | Ailill Inbanda King of Connacht | Ailill Inbanda King of Connacht | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | Dúnchad Muirisci King of Connacht | Dúnchad Muirisci King of Connacht | Dúnchad Muirisci King of Connacht | Dúnchad Muirisci King of Connacht | Dúnchad Muirisci King of Connacht | Dúnchad Muirisci King of Connacht | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | Indrechtach, d.707 King of Connacht | Indrechtach, d.707 King of Connacht | Indrechtach, d.707 King of Connacht | Indrechtach, d.707 King of Connacht | Indrechtach, d.707 King of Connacht | Indrechtach, d.707 King of Connacht | | | | | | | Ailill | Ailill | Ailill | Ailill | Ailill | Ailill | | | | | | | | | | | | | | | | |
| | | Ailill Medraige, d.764 King of Connacht | Ailill Medraige, d.764 King of Connacht | Ailill Medraige, d.764 King of Connacht | Ailill Medraige, d.764 King of Connacht | Ailill Medraige, d.764 King of Connacht | Ailill Medraige, d.764 King of Connacht | | | | | | | Cathal | Cathal | Cathal | Cathal | Cathal | Cathal | | | | | | | | | | | | | | | | | | | | | | |
| | | Cathal, d.816 | Cathal, d.816 | Cathal, d.816 | Cathal, d.816 | Cathal, d.816 | Cathal, d.816 | | | | | | | Donn Cothaid mac Cathail, d.787 | Donn Cothaid mac Cathail, d.787 | Donn Cothaid mac Cathail, d.787 | Donn Cothaid mac Cathail, d.787 | Donn Cothaid mac Cathail, d.787 | Donn Cothaid mac Cathail, d.787 | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | Connmhach | Connmhach | Connmhach | Connmhach | Connmhach | Connmhach | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | Caomhán | Caomhán | Caomhán | Caomhán | Caomhán | Caomhán | | | Dubda | Dubda | Dubda | Dubda | Dubda | Dubda | | | | | | | | | | | | |