861 - 870 AD 

861 - 876 AD *102.Aedh Findliath / Finn Liath - of the White Hair was to be the Gaelic Milesian Heremonian Dal Cuinn "northern" Ui Niaill Cenel  nEogain 168th High King of Ireland, who was a son of *101.Niall Caille the previous Gaelic Milesian 166th King of Ireland, and he was married to the daughter of 96.Kenneth mac Ailpine the previous Heremonian Dal Cuinn King of the Scots / Scottii in Albany in the Scottish Highlands and had already consolidated his over - lordship in the northern half of Ireland, and was now to have success against the Vikings, driving them out their settlements also in his territory there.        

     102.Gormlaith, died, who had been the daughter of *101.Donough / Donnchad Midi the previous Gaelic Milesian Heremonian Dal Cuinn "southern" Ui Niaill Clann Cholmain 163rd King of Ireland. and the Queen of *101.Niall Caille the previous Gaelic Milesian Heremonian Dal Cuinn "northern" Ui Niaill 166th King of Ireland.

   106.Carroll / Cerball the Heremonian Ui Laoghaire U Connla King of Ossory who had his territory in Co. Kilkenny in the south - west of Southern Leinster drove off the new forces of Vikings who were at this time raiding the Grange Fertagh monastery.

862 AD 106.Carroll / Cerball the Heremonian Ui Laoghaire Ui Connla King of Ossory in Co. Kilkenny besieged the Heremonian Ui Laoghaire Cu Corb Septs to try and expand his own authority there further in Southern Leinster by taking booty, and a fortnight later the Heremonian Cu Corb Septs were to retaliate by carrying out an attack on his kingdom also in Ossory and gained booty from there.    

863 AD The Vikings who were situated on the River Boyne on the coast of Northern Leinster plundered the ancient sites of New Grange, Knowth and Dowth along the middle - east coast, and because of this diversion the Irish Chiefs at this time were able to drive them out of the Dublin area in Co. Dublin the north - east of Southern Leinster.

     106.Muirecan the Heremonian Cu Corb Ui Dunlainge Ui Faelain 29th King of Leinster, died, whose father was 105.Diarmait, one of the 2 sons of 104.Rory / Ruadhri the previous 20th King of Leinster, the son of 103.Faelan who had been the 16th King of Leinster and the direct male line ancestor of the Cu Corb Ui Faelain Sept and left behind 3 sons, 107.Donnell / Domhnall who would become the future 32nd King of Leinster, 107.Carroll / Cerball the future 34th King of Leinster. and 107.Maelmorda who was to be the one who would eventually continue to carry their particular Ui Faelain male line forward. Meanwhile 106.Dunlaing became the new Heremonian Cu Corb Ui Dunlaing Ui Muireadhaigh 30th King of Leinster, who was one of the 2 sons of 105.Murray / Muireadach, one of the 2 sons of 104.Bran Ardchenn the previous 21st King of Leinster, who had been the son of 103.Murray / Muireadach the 18th King of Leinster who is the direct male line ancestor of the Ui Muireadhaigh Septs in Southern Leinster.

864 AD The regions of Sruthar Slebhte and Acadh Arglais were besieged by the Heremonian Ui Laoghaire Ui Connla Sept in their kingdom of Ossory in the south - west of Southern Leinster, while the Septs in the north of Ossory also carried out a great defeat over the Vikings.

     The Heremonian Ui Cobhthaigh Ui Felim Deisi Sept, who now had their territory in the Co. Waterford region, who were descended from 81.Angus / Oengus Bolg / Gaibuaibthech - of the Poisonous Spear, destroyed the Norse Viking fort in their settlement at Waterford that was situated on the east coast of Co. Waterford in the south - east of the Munster Province.

866 AD *102.Aed Findliath the Gaelic Milesian Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain 168th King of Ireland besieged the Vikings capturing all of their settlements to the north of Dublin in the mid - eastern region of the Leinster Province, and this made them reduce their raids, and their attacks on the monasteries also declined, while Olaf - the White the Viking Norwegian King of Dublin concentrated on raiding Alba / Scotland instead and Ivar - the Boneless the Viking Prince had also gone from Ireland to East Anglia, to seek revenge for his father, Ragnar's death, who had been previously executed there by the Saxon King, Ella in Northumbria who had thrown him into a pit of snakes. 

     The Gaelic Milesian Heremonian Ui Laoghaire Cu Corb Ui Cheinnselaig Sept was now on the ascendant, and infighting occurred once again within their strongest growing Sept, and 104.Teague / Tadhg was killed by his own brothers in Southern Leinster, who were all sons of 103.Diarmait, a son of 102.Rudgal, a son of 101.Aed, a son of 100.Onchu who was one of the 2 sons of 99.Faelan the previous 9th Ui Cheinnselaig King, a son of 98.Silan, one of the 2 sons of 97.Eogan Caech, one of the 2 sons of 96.Nathi, a son of 95.Criffan / Crimthann the 1st Ui Cheinnselaig King who had previously been the Cu Corb Ui Cheinnselaig 3rd King of Leinster.

867 AD *102.Aedh Findliath - of the White Hair the Gaelic Milesian Heremonian Dal Cuinn "northern" Ui Niaill 168th High King of Ireland this year besieged the Vikings, and they suffered their first defeat on Loch Foyle, and he then marched southward with a relic of the True Cross and defeated them again near Drogheda / Droichead Atha (The Bridge of the Ford) in Co. Louth in the north - east of Northern Leinster and this then freed up the northern region, as he tried to drive them out of Ireland altogether.

868 AD 106.Carroll / Cerball the Heremonian Ui Laoghaire Ui Connla King of Ossory who had his territory in Co. Kilkenny in Southern Leinster, who was a son of 105.Dungal, besieged the Heremonian Ui Cobhthaigh Ui Felim Deisi Sept who had their territory nearby in Co. Waterford in the south - east of the Munster Province, to further expand his own overall authority into Mogha's Half.

      Dalach the Heremonian Dal Cuinn "northern" Ui Niaill Cenel Conaill Chief, died this year, who is the direct male line ancestor of the Clann Daley who would eventually evolve into the more  dominant Sept of the O Donnells through his grandson Donnell / Domhnall, who had their territory in Tyrconnell / Co. Donegal in the north - west of the Ulster Province.  

869 AD 106.Conor the Heremonian Dal Cuinn Ui Briuin Ai Siol Muireadhaigh 38th King of Connacht defeated the Norwegian Vikings near Drogheda on the coast in Co. Louth in the north - east of Northern Leinster.

     106.Dowling / Dunlaing the Heremonian Cu Corb Ui Dunlainge Ui Muireadhaigh 30th King of Leinster, died, whose father was 105.Murray / Muireadach, one of the 2 sons of 104.Bran Ardchenn the previous 21st King of Leinster and his male line was to be carried forward through his son, 107.Ailill who became the 31st King of Leinster.

870 AD Olaf - the White the Norwegian Viking King and Ivar - the Boneless who had carried out raids in Alba / Scotland now returned to Dublin in the north - east of Southern Leinster, as the Viking Kings of the Northmen, with many of their captives as hostages, which included many Celtic Britons and many Celtic Picts but Olaf - the White was then killed and his Christian Queen, Aud went off to colonise Iceland where the religious reforming sect of the Irish Cul De  (Clients of God) were already set up. The Vikings at this time seemed to concentrate more on Briton, and Ireland was to have some reprieve for the next 44 years until 914 AD.

     The monks on the island of Iona / Holy Island, situated between Ireland and Scotland had finally had enough of the ongoing Viking attacks and they left the island for good and were to settle permanently on the mainland at Kells / Ceanannus Mor in Co. Meath in the south - east of Northern Leinster to be nearer to the overall protection of the Gaelic Milesian Heremonian Dal Cuinn "southern" Ui Niaill Kings were they founded the settlement there of the "Kindred of the Ui Columb Cille."

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