911 - 920 AD

911 AD The Viking Danes established a settlement at Drogheda in Co. Louth in the north - east of Northern Leinster above Dublin.

912 AD 105.Murray / Muireadach the Heremonian Dal Cuinn Ui Briuin Ai Siol Muireadhaigh / Sil Murray Siol Cathail Clann Cathail Chief died, who was a son of 104.Mugron who was the previous 38a King of Connach, descended through 101.Cathal who had been the 23rd King of Connacht and was one of the 2 sons of 100.Murray / Muireadach Muillethan the 18th King of Connacht ancestor of the Siol Muireadhaigh / Sil Murray Sept, a grandson of 98.Reilly / Raghallach mac Uatach who had been the 12th King of Connacht andthe direct aristocratic warrior male line ancestor of the Ui Briuin Ai Sept. This was to be the end of his particular Ui Briuin Ai Sil Murray Siol Cathail male line altogether to the Kingships.

913 AD The Septs in the Ulster Province now attacked the Vikings at sea.

        107.Mael Cluiche, died, who was one of the 4 sons of 106.Conor / Conchobar who had been the previous Heremonian Dal Cuinn Ui Briuin Ai 38th King of Connacht and the direct aristocratic warrior male line ancestor of the Ui Conchobair Septs in the Connacht Province, whose other sons were 107.Aed O Connor who had been the 39th King of Connacht, 107.Teague / Tadhg O Connor who would become the 40th King of Connacht, and 107.Cathal O Connor who would become the 41st King of Connacht  and the one to continue on their aristocratic warrior Ui Conchobhair male line. This was to see the end of 107.Mael Cluiche's  particular aristocratic warrior male line extending from 98.Reilly / Raghallach the 12th King of Connacht the direct descendant of the HeremonianDal Cuinn Ui Briuin Ai Septs.

     *103.Niall Glun Dubh - of the Black Knee the Tanaiste / heir apparent of the Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain had married 105.Gormley / Gormlaith the widowed daughter of *104.Flann Sinna the Gaelic Milesian Heremonian "southern" Ui Niaill Clann Cholmain 164th King of Ireland and they were to produce  a son, 104.Donnell who was drowned at Galway while he was there in fosterage. 105.Gormley had been originally betrothed to 102.Cormac mac Cuilennain who had become the previous Heberian Eoghanacht 31st King of Munster who was very pious and did not wish to marry and he had returned her to her father with her dowry and took up holy orders instead. She was then married against her will to 107.Carroll mac Muirecain the previous Heremonian Cu Corb 34th King of Leinster who had treated her badly throwing the fact in her face regularly that 102.Cormac mac Cullenan had refused to marry her, 107.Carroll mac Muiecain was killed  himself she then married *103.Niall Glun Dubh the Heremonian Dal Cuinn "northern" Ui Niall Prince / Tanaiste / heir apparent.  

914 AD *104.Flann Sinna / Siona the Gaelic Milesian Heremonian Dal Cuinn "southern Ui Niaill 169th King of Ireland, died, and Colman the Abbot of Clonmacnoise interred his body in front of the unfinished Cathedral erecting the 10' High Cross of the Scriptures over his grave, facing what is now a ruined church there in Co. Longford in the north - west of Northern Leinster.

      The second great wave of Viking attacks began as a massive fleet arrived on the coast of Co. Waterford in the south - east of the Munster Province, and this continual aggressive onslaught was to continue on this time for the next quarter of a Century with their armies raiding further inland and Munster was now to take the brunt of these attacks, which was to only weaken the Heberian Eoghanacht Septs further there in Mogha's Half.

      107.Dermot mac Carroll, the son of 106.Carroll / Cerball, was still the Heremonian Ui Laoghaire Ui Connla King of Ossory who had his territory in Co. Kilkenny in the south - west of Southern Leinster.

915 AD More Viking ships arrived into Ireland, and the Danes who were among them carried off the cattle of the Killosy / Cell Ausaille near Naas in Co. Kildare in Southern Leinster, and 108.Augaire the Heremonian Cu Corb 35th King of Leinster, the son of 107.Ailill the previous 31st King of Leinster defeated them in the Battle of Ceannfuait / Confey near Lucan in Co. Kildare, but unfortunately 108.Ugaine was to be killed in the future along with many of the Irish Chiefs from Southern Leinster.

915 AD - 917 AD *103.Niall Glun Dubh - of the Black Knee was to be the Gaelic Milesian Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain 170th King of Ireland, who was a son of *102.Aed Fionn Liath the previous Gaelic Milesian 168th King of Ireland, and he set up his residence at the fortress of the Heremonian Dal Cuinn "southern" Ui Niaill in Co. Meath in the south - east of Northern Leinster. He was a direct descendant of 91.Eogain the 1st Heremonian King of Aileach (Cenel nEogain) and *90.Niall - of the Nine Hostages the Gaelic Milesian 126th King of Tara / Ireland (Ui Niaill), but would only reign for 3 years. Both he and his father, *102.Aed Fionn Liath were to be the only Heremonian Kings of Ireland who ever tried to relieve the Munster Province of the attacks that were being carried out by the Danes, until the future arrival of the Heremonian Dal gCais *105,Brian Boru much later on in the early 11th Century AD and *103,Niall Glun Dubh was to engage the Danes also at every opportunity in Midhe / Meath, Dublin and the Leinster Province until they were to be finally hemmed in, in Dublin itself.

917 AD The Vikings began to increase their more permanent settlements along the coast of Ireland, and the Irish Septs at this time seemed to be unable to stop their continuing advance.

      *103.Niall - of the Black Knee the Gaelic Milesian Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain 170th King of Ireland led both the Heremonian Dal Cuinn "northern" and the "southern" Ui Niaill Septs to assist the Heberian Eoghanacht Septs under seige in the Munster Province against the continuing attacks now being carried out there by the Vikings and also laid siege to the Viking settlement at Waterford in Co. Waterford in the south - east of Munster, but by this period in time the Viking Norse settlements had grown too numerous in Munster to clean them out completely. *103.Niall - of the Black Knee also depended on the assistance of the various other Heremonian Septs who had their territory in Southern Leinster, but unfortunately 108.Augaire the Heremonian Cu Corb Ui Dunlainge Ui Muireadhaigh 35th King of Leinster had been defeated in a battle against the Norse near St. Mullins in Co. Carlow where there was great slaughter. This allowed Sitric the Norse King to re - occupy Dublin and establish a new kingdom there, and the Norsemen now also settled in to the south into the Cork region in Co. Cork in Southern Munster.

       108.Augaire the Heremonian Cu Corb Ui Dunlainge Ui Muireadhaigh 35th King of Leinster, whose father was 107.Ailill the previous 31st King of Leinster, had been killed, but his aristocratic warrior male line would later on be carried forward by his son, 109.Toole / Tuathal, who would become the future 39th King of Leinster.

     109.Faelan became the new Heremonian Cu Corb Ui Dunlainge Ui Dunchada 36th King of Leinster, who was a son of 108.Murray / Muireadach who had been the previous 33rd King of Leinster, descended from 103.Dunchad the 15th King of Leinster the direct male ancestor of the Ui Dunchada Septs in Southern Leinster.

     107.Maelmorda, one of the 3 sons of 106.Muirecan who had been the previous Heremonian Cu Corb Ui Dunlainge Ui Faelain 29th King of Leinster, died this year also, who was to be the only one of their aristocratic warrior Septs who would carry their Cu Corb Ui Faelain male line forward through his 2 sons, 108.Broen who would become the 38^th King of Leinster, and 108.Finn who would be the actual one who would continue on their Heremonian Cu Corb Ui Faelain aristocratic warrior male line, becoming the father of 109.Murrough / Murchad the 41^st King of Leinster.

917 AD October 17th: *103.Niall - of the Black Knee and his Heremonian Dal Cuinn "northern" Ui Niaill Kings came south again this time to take Sitric the Danish King of Dublin full on, with his Heremonian Dal Cuinn forces also from Midhe / Meath and the 3 Colla kingdom of Orghialla / Oriel and besieged the Vikings in the Battle of Dublin where the Danes came out to meet him head on at Cill Moronog near Dublin. *103.Niall the Gaelic Milesian 170th King of Ireland was killed at Rathfarnham along with many of his Heremonian Chiefs and warriors in the main conflict that occurred at Island Bridge, and the Heremonian Dal Cuinn forces were devastated with 103.Aed mac Eochocain the Heremonian Dal Fiatach 37th King of Ulaid also among those killed who had also supported him. This defeat also brought about the Heremonian Dal Cuinn Colla Uais Ui Mheic Uais Ui Tuitre O Flynn / Ui Flainn / Ui Lynn Sept ceasing their connection with the Heremonian Dal Cuinn 3 Colla kingdom of Orghialla / Airghialla in the Ulster Province, when Mael Craibe mac Duibsinaig the last 3 Colla Ui Macc Uais King of Orghialla / Airghialla was also among those killed. *103.Niall - of the Black Knee was to become the direct male line ancestor of all the Heremonian Dal Cuinn "northern" O Nialls / O Neills of Ulster. With the death also of 103.Aed mac Eochocain the Heremonian Dal Fiatach King, his direct aristocratic warrior male line would continue on through his 3 sons, 104.Dubgall mac Eochocain who would become the Heremonian Dal Fiatach 38th King of Ulaid, 104.Matudan mac Eochocain who would become the future Heremonian Dal Fiatach 41st King of Ulaid, and 104.Niall mac Eochocain who would become the Heremonian Dal Fiatach 43rd King of Ulaid.

918 - 942 AD *105.Donough / Donnchad Donn, the younger brother of 105.Gormlaith the Queen of *103.Niall Glun Dubh the Gaelic Milesian 170th King of Ireland, became the new Gaelic Milesian Heremonian Dal Cuinn "southern" Ui Niall Clann Cholmain 171st King of Ireland as their older brother, 105.Conor had previously been killed as they were all children of *103.Flann Sinna the previous Gaelic Milesian 169th King of Ireland, descended from 94.Colman Mor the 6th King of Midhe / Meath who is the direct male line ancestor of the Clann Cholmain, who was one of the 3 sons of 93.Diarmait mac Carroll the Gaelic Milesian 133rd King of Tara / Ireland, descended from 91.Conall Cremthainne, one of the 8 sons of *90.Niall - of the Nine Hostages the Gaelic Milesian 126th King of Tara / Ireland.

      With this major Heremonian Dal Cuinn Ui Niaill reversal the Vikings under Sitric in Dublin now grew stronger, and were a renewed threat, as they were now able to totally reoccupy Dublin on the River Liffey in Co. Dublin in the north - east of Southern Leinster until 1169 AD when the Anglo - Norman English Invasion was to begin and this really meant that the Vikings had now returned to Ireland in force.

920 AD A major battle occurred this year at Ath na nUrlaidhe (The Ford of the Sledgings) on the Co. Tipperary border in the north - east of the Munster Province, between the Irish Septs and the Viking Danes. (Urlingford in Co. Kilkenny in south - west of Southern Leinster received its name from this crossing.)

920 AD Cormac mac Mothla who was the Gaelic Milesian Heberian Dal gCais Ui Bloid Ui Chernaig King of the Deisi Muman Sept was also the Abbot of Kilmolash / Cell Molaisse in Co. Waterford in the south - east of the Munster Province and the Bishop (supervisor) and Vice - Abbot of Secnap of Lismore there, and also the Chief Counsellor of Munster and during this year he was killed by the Heremonian Ui Cobhthaigh Ui Felim Ui Fothaid Aiched Sept in Co. Tipperary in the Baronies of Iffa and Offa in the north - east of Munster, for at this time the Deisi Septs there were suffering severe attacks on their territory in Co. Waterford. He was directly descended from 91.Cas (Dal gCais) the King of Thomond / Northern Munster from his son, 92.Blood / Bloid (Ui Bloid) and his son, 93.Brendan / Breanainn Bran the aritocratic warrior ancestors of the Muinter Urthaile, Muinter Maol Domhnaigh, Muinter Chearnaigh, which were to later on produce the Families of the O Brennans of Thomond, the O Glinns / Glynns, the O Hurleys, the O Maglins, the O Maegans, the O Maloneys and the O Muldowneys / O Downeys.

      Encouraged further by their recent great success over the death of *103.Niall - of the Black Knee the Gaelic Milesian  Heremonian Dal Cuinn Ui Niaill 170th King of Ireland, a further new wave of Viking invaders also arrived into Ireland to strengthen their hold on their Viking settlements in Limerick in Co. Limerick in the mid - north - west of the Munster Province, Waterford in Co. Waterford in the south - east of Munster, and Wexford in Co. Wexford in the south - east of Southern Leinster.

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