Events from the 8th century in Ireland.

700s 701 Death of Niall mac Cernaig Sotal,The Chronology of the Irish Annals, Daniel P. McCarthy a king in southern Brega of the Uí Chernaig sept of Lagore of the Síl nÁedo Sláine. He was the grandson of the high king Diarmait mac Áedo Sláine (died 665).Charles-Edwards, Early Christian Ireland, pp. 602–603

702 Death of Írgalach mac Conaing, also called Írgalach ua Conaing, was a King of Brega from the Uí Chonaing sept of Cnogba (Knowth) of the Síl nÁedo Sláine branch of the southern Uí Néill. He was the son of Conaing Cuirre mac Congaile (died 661) and brother of Congalach mac Conaing Cuirre (died 696), previous kings of Brega.T.M. Charles-Edwards, Early Christian Ireland, Appendix II. He ruled from 696 to 702.

703 Death of Loingsech mac Óengusso. He was an Irish king who was High King of Ireland. Congal Cennmagair becomes High King of Ireland. He belonged to the northern Cenél Conaill branch of the Uí Néill.

704 Death of Adomnán, ninth abbot of IonaThe Oxford Illustrated History of Ireland. Foster, RF. Oxford University Press, Oxford. 1989 (b. c 627).

707 The Uí Néill High King of Ireland Congal Cennmagair campaigned in Leinster and obtained Cellach Cualann's submission to his authority.Annals of Ulster AU 707.7

708 or 710 High King of Ireland Congal Cennmagair died 708, or 710 according to some sources.

709 Lethlobar mac Echach died. He was a Dal nAraide king of the Cruithne in Ulaid (Ulster).

709 or 710 Fergal mac Máele Dúin in 709, or 710 according to some sources, becomes High King of Ireland. Fergal belonged to the Cenél nEógain sept of the northern Uí Néill.

710s 711 Death of Seachnasach, the 17th king of the Uí Maine.

714 Fogartach mac Néill was deposed as king of Brega and exiled in Britain.Annals of Ulster AU 714.4

715 Death of Cellach Cualann mac Gerthidi, the last Uí Máil king of Leinster. Cellach's byname is derived from the land of Cualu which lay around Glendalough.

718 Death of Conall Grant mac Cernaig, a King of Brega of the Uí Chernaig sept of Lagore of the Síl nÁedo Sláine. He was the grandson of the high king Diarmait mac Áedo Sláine. His father Cernach Sotal had died during plague years in 664.Annals of Ulster AU 664.4

719 Áed mac Cellaig, son of Cellach Cualann, was slain at the Battle of Finnabair (Fennor, County Kildare) in a fight among the Laigin.

720s 721 Cathal mac Finguine becomes King of Munster, reigning until his death in 742.The Concise History of Ireland. Duffy, S. Gill & Macmillan, Dublin. 2005

722 11 December: death of Fergal mac Máele Dúin, a High King of Ireland. Fergal belonged to the Cenél nEógain sept of the northern Uí Néill.

724 Death of Fogartach mac Néill, sometimes called Fogartach ua Cernaich, an Irish king who is reckoned a High King of Ireland. He belonged to the Uí Chernaig sept of the Síl nÁedo Sláine branch of the southern Uí Néill. He was King of Brega and was the son of Niall mac Cernaig SotalT.M. Charles-Edwards, Early Christian Ireland, Appendix III

727 Death of Murchad mac Brain Mut, was a King of Leinster from the Uí Dúnlainge branch of the Laigin. He was the son of Bran Mut mac Conaill (died 693), a previous king.Francis J.Byrne, Irish Kings and High-Kings, Table 9 He ruled since 715.the Book of Leinster gives him a reign of 15 years

728 Death of Dúnchad mac Murchado, a King of Leinster from the Uí Dúnlainge branch of the Laigin. He was the son of Murchad mac Brain Mut, the previous king.

729 Death of Cathal mac Néill or Cathal Cerr or Cathal Corc, a king of Southern Brega at Lagore. He belonged to the Uí Chernaig sept of the Síl nÁedo Sláine branch of the southern Uí Néill. He was the son of Niall mac Cernaig Sotal. He ruled the Uí Chernaig from 724-729 succeeding his brother the high king Fogartach mac Néill.

730s 733 Birth of Donnchad mac Domnaill, called Donnchad Midi, High King of Ireland. His father, Domnall Midi, had been the first Uí Néill High King from the south-central Clann Cholmáin based in modern County Westmeath and western County Meath, Ireland. The reigns of Domnall and his successor, Niall Frossach of the Cenél nEógain, had been relatively peaceful, but Donnchad's rule saw a return to a more expansionist policy directed against Leinster, traditional target of the Uí Néill, and also, for the first time, the great southern kingdom of Munster.

734 Abduction of Flaithbertach mac Loingsig. Cenél Conaill now excluded from Uí Néill Overkingship.

738 Death of Fáelán mac Murchado, a King of Leinster from the Uí Dúnlainge branch of the Laigin. He was the son of Murchad mac Brain Mut, a previous king. He ruled since the death of his brother Dúnchad in 728.

740s 741 Death of Indrechtach mac Lethlobair a Dal nAraide king of the Cruithne in Ulaid (Ulster). 742 Death of Conaing mac Amalgado, a King of Brega from the Uí Chonaing sept of Cnogba (Knowth) of the Síl nÁedo Sláine branch of the southern Uí Néill. He was the son of Amalgaid mac Congalaig (died 718), a previous king. He ruled from 728-742. Death of Cathal mac Finguine, King of Munster, who had reigned since 721. Death of Áed Balb mac Indrechtaig, King of Connacht.

743 Clann Cholmáin takes the Overkingship of Uí Néill.

748 Dúngal mac Amalgado or Dúngal Cnogba, from the Uí Chonaing sept of Cnogba (Knowth) of the Síl nÁedo Sláine branch of the southern Uí Néill became King of Brega . He was the brother of Conaing mac Amalgado (died 742), a previous king. He ruled until his death in 759.

750s 759 Death of Dúngal mac Amalgado.

760s 760 Start of the reign of Cellach mac Dúnchada, (died 776), as King of Leinster. He was the son of Dúnchad mac Murchado (died 728), a previous king. The royal seat was at Líamhain (Lyons Hill, on the Dublin-Kildare border).

763 20 November: death of Domnall Midi or Domnall mac Murchado (born before 715), King of Mide and, according to the later lists, High King of Ireland.

764 Diarmait Dub, brother of Donnchad Midi was killed leading the forces of the monastery of Durrow in battle against those of Clonmacnoise, led by Bressal mac Murchado, who was either his father's brother or his brother's son.

765 Death of Flaithbertach mac Loingsig, high-king of Ireland

766 Donnchad Midi or Donnchad mac Domnaill becomes King of Mide

768 Cú Dínaisc mac Conasaig becomes Abbot of Armagh

769 St. Maelruain’s Monastery founded in Tallaght

770s 770 Donnchad Midi, King of Mide, succeeded to the Kingship of Tara and the supposed High Kingship of Ireland when Niall Frossach abdicated. Ciarán the Pious of Bealach-duin, who founded Castlekeeran monastery died.

771 Niall mac Conaill, son of Conall Grant mac Cernaig (died 718), becomes King of South Brega. He ruled until 778.

775 Donnchad Midi, King of Mide took control of the monastery at Clonard in the Leinster borderlands. He also campaigned in Munster. The Annals of Ulster record that Donnchad "did great devastation in the territory of the Munstermen, and many of the Munstermen fell".Annals of Ulster, AU 775.5.

776 Death of Cellach mac Dúnchada, King of Leinster.

777 Donnchad Midi is recorded as twice having disturbed the óenach of Tailtiu, first in 774, when no explanation is given, and again in 777. The annals state that the Ciannachta, by which the Síl nÁedo Sláine, this time the north Brega branch of the kindred, are meant, were the targets.Annals of Ulster, AU 774.7 & AU 777.6; Charles-Edwards, Early Christian Ireland, p. 558. This is explicitly linked to the war between Donnchad and Congalach mac Conaing, the King of Knowth, which had begun earlier in 777 when Donnchad led an army from Leinster into Brega.Annals of Ulster, AU 777.3.

778 Donnchad Midi of Clann Cholmáin becomes King of Tara (but see also 770). Death of Niall mac Conaill, King of South Brega Death of Mac Flaithniadh, Abbot of Clonfert.

779 Donnchad Midi campaigned against the northern Uí Néill and received the submission of the "king of the North", Domnall, son of Áed Muinderg.Doherty, "Donnchad"; Annals of Ulster, AU 779.10.

780s 782 Death of Mugrón mac Flainn, king of the Uí Failge

785 Death of Ruaidrí mac Fáeláin, son of Fáelán mac Murchado (died 738), King of Leinster The royal seat was at Naas in the eastern part of the Liffey plain, Airthir Liphi. He ruled from 776-785.

786 Death of Diarmait mac Conaing, King of South Brega, son of Conall Grant mac Cernaig (died 718) He ruled in south Brega since 778.

790s 791 Death of Cú Dínaisc mac Conasaig (also called Cudinaisc, Cudinaisg, Cú Dínisc, Cudiniscus) (b. c.720 ), was a former Abbot of Armagh, 777 - 782.

792 Death of Mael Ruain, leader of the Culdee reform movement at Tallaght.

793 Artrí mac Cathail ordained King of Munster

795 First Viking raids on Ireland at Iona, Rathlin Island, Inishmurray and Inishbofin. Viking raid on Lambay Island

797 Death of Donnchad Midi, King of Mide. Death of Muireadhach mac Olcobhar, Abbot of Clonfert.

798 Viking raid on St Patrick's Island off the coast of County Dublin.

799 Death of Domnall mac Donnchado, King of Mide since 797.

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