801 - 810 AD 

800 AD The Celtic High Crosses of Ossory at Kilkieran and Ahenny / Ath Thine in Co. Tipperary in the north - east of the Munster Province on the Co. Kilkenny border in the south - west of Southern Leinster were created, having unusual spiral and network patterns instead of the usual panels, depicting the consequence of death during those times, and there are also some traces still existing there of the original St. Kieran's / Ciaran's church.

801 AD Baltard and Hag’s Head were struck by an earthquake this year.

     The Heremonian Dal Cuinn northern Ui Niaill Cenel nEogain Sept from out of the north of the Ulster Province cut down the trees at Creatalach in the Heberian Dal gCais territory in the north - west of the Munster Province to roof their palace of Aileach and this would always remain a thorn in the side for the Dal gCais until 1100 AD when *108.Murtugh O Brian would then retaliate.

802 AD The monastery on the island of Iona (The Holy Island of Saints) founded by 94.St. Columbcille was to be destroyed 3 times from this date on by the Viking Norsemen who were mainly after gold and jewels, and who also carried out 14 raids on the monastery at Kildare in Co. Kildare in Central Southern Leinster, and as the books and manuscripts where to have no value to them they were discarded and drowned. Despite this some of the many manuscripts were to still to be able to survive their continuing onslaught.

    104.Fergal the Heremonian Ui Laoghaire Ui Connla King of Ossory, died, who was a son of 103.Anmchaidh a previous King of Ossory, and his son, 105.Dungal now became the new Heremonian Ui Laoghaire Ui Connla King of Ossory who had his territory in Co. Kilkenny in the south - west of Southern Leinster until 842 AD,

     104.Maurice / Muirgius the Heremonian Dal Cuinn Ui Briuin Ai Siol Muireadhaigh 31st King of Connacht carried out an attack in the south were he destroyed the crannogs on Loch Ree / Riach on the River Shannon in the territory of the Delbna Nuadat Sept in Co. Roscommon in  the east of the Connacht Province.

803 AD 105.Finsnechta Cetharderc the Heremonian Ui Laoghaire Cu Corb Ui Dunlainge Ui Dunchada 22nd King of Leinster had Angus / Oengus mac Mugron the Heremonian Ui Laoghaire Cu  Corb Ui Failge King, who was descended from 91.Ros Failge, killed, and his successor was also killed at Rathangan /  Rath Imomghain in Co. Kildare in Central Southern Leinster.

     100.Aed Allen from the Heberian Eoghanacht Locha Lein Sept was killed in a battle, between the Eoghanacht Septs and the Ciarraige Septs. He was a brother to 100.Con Cu Chongelt the King of Iar Muman, who had died previously in 791 AD, and both had been sons of 99.Coirpre, a son of 98.Cu Dinaisc, the son of 97.Foirchelach, a son of 96.Kennelly / Cenn Faelad, a son of 95.Aed Find, one of the 3 sons of 94.Criffan / Crimthann from West Munster / Iar Muma, descended from 90.Coirpe Luachra, one of the 7 sons of 89.Conall Corc the 1st King of Cashel / Munster,

      The Sogain Sept revolted against their overlords from the Dal Cuinn Maenmag Ui Maine kingdom of which Loch Ree was the centre of their territory in Southern Connacht. 104.Maurice / Muirgius the Dal Cuinn Ui Briuin Ai Siol Muireadhaigh 31st King of Connacht was to be very aggressive against the subject Septs in the Connacht Province, while demonstrating the overall authority that the Ui Briuin now had  there, which also involved the occupation of their territories. 104.Maurice also made one of his sons, 105.Cormac the Abbot of Baslick, which was a Ciarraige Ai Sept church close to Cruachan / Cruachu in the Ui Briuin Ai territory.

804 AD *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164th King of Ireland attended a meeting at Duncuair at north Enfield on the border of Leinster Province presided over by Condmach the Abbot of Armagh, and he freed all of the monasteries from their obligation to provide warriors to support him and then attacked Southern Leinster where he submitted 105.Finsnechta Cetharderc the Cu Corb Ui Dunchada 22nd King of Leinster, twice.

805 AD *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164th King of Ireland returned to Southern Leinster where he now deposed 105.Finsnechta Cetharderc the Cu Corb Ui Dunchada 22nd King of Leinster and divided the Kingship of Leinster up between 105.Murray / Muireadach, the son of 104.Ruaidri the previous 20th King of Leinster from the Ui Faelain Sept and 105.Murray / Muireadach, the son of 104.Bran Ardchenn  the previous 21st King of Leinster from the Ui Muireadhaigh Sept. Prior to this he had tried to divide Southern Leinster between *102.Conor / Conchobar and 102.Ailill who were 2 of the sons of *101.Donough / Donnchad Midi the previous Dal Cuinn southern Ui Niaill Clann Cholmain 163rd King of Ireland. *102.Conor had since killed his brother, and reunited the kingdom and he was later to become the 165th King of Ireland reasserting the right of the Dal Cuinn southern Ui Niaill Clann Cholmain to alternate the Kingship of Ireland after *100.Aed Oirdnide was to die.

    105.Cormac, the son of 104.Maurice / Muirgius the Dal Cuinn Ui Briuin Siol Muireadhaigh 31st King of Connacht, who he had previously installed as the Abbott of the Baslick church was killed by the Ciarraige Ai Sept, so he laid waste to their territory and also gave sanctuary to 105.Finsnechta Cetharderc the previous 22nd King of Leinster during his exile.

806 AD 105.Finsnechta Cetharderc from the Cu Corb Ui Dunchada Sept now recovered his previous kingdom in Southern Leinster by defeating his Cu Corb Ui Dunlainge kinsmen, the 2 sons of 104.Ruadri the previous Cu Corb Ui Faelain 20th King of Leinster, 105.Murray and 105.Diarmait a brother to 105.Murray, who was to later become the father of 106.Muirecan who would become the 29th King of Leinster the direct male line ancestor of the future Cu Corb Ui Dunlainge Ui Faelain Kings of Leinster. 105.Finsnechta Cetharderc, had a sister, 105.Muirenn who was the Abbess of Kildare, and two of his brothers, nephews, and grand nephews, were all to be Abbots there throughout the 9th Century AD. Meanwhile there was also division and infighting going on among their other Cu Corb kinsmen, the Ui Cheinnselaig in their Tuatha (Family region) over who had the authority there.

     The Vikings raid the island of Iona (The Holy Island of Saints) again situated between Ireland and the Scottish Highlands, this time killing 68 of the unarmed monks who were there.

807 AD The monastic community was now also slaughtered in Cork in Co. Cork in Southern Munster in a inter religious battle with the monastic community to the north from Clonfert in Co. Galway in the south - west of Connacht.

      The Vikings now began their raids further inland and in the north into the Connacht Province, and in Co. Sligo they besieged and burnt the monastery on Inish Murray Island in the entrance to Donegal Bay, which brought the religious activities to an end there, but the ruins of all the buildings are still there to see, including the Church of St. Molaisse / Teampall Mo Laisse who had been the founder, and the Church of Mary / Teampall Mhuire, which was a church there for the nuns. Roscam in Co. Galway in the south - west of Connacht also came under attack.

      Because of the previous immense slaughter the monks on Iona / Holy Island were now to be driven out temporarily, by the Vikings, from their island, and they returned to the mainland to Kells / Ceanannus Mor (The Head Fort) in Co. Meath in the south - east of Northern Leinster, which had been used originally as a Royal residence for Centuries, until it had been given over to 94.St.Columbcille / St. Columba by 93.Diarmait mac Carroll who was then the Dal Cuinn southern Ui Niaill 133rd King of Tara / Ireland to be used as a religious centre. Once in Kells they also built an Oratory 21 feet wide and 23 feet long with walls nearly 4 feet thick and roofed it in stone up to 38 feet above the ground to commemorate 94.St. Columbcille, and it is still their to see today. The Book of Kells, which is designated The Most Beautiful Book in the World was also to be finalized there, made up of 344 pages that include the Gospels in Latin, together with local land covenants. It was originally encased in a golden shrine, until it was to be stolen and found buried a few weeks later with the golden cover missing, but the book itself still exists and can be viewed at the Trinity College in Dublin. Unfortunately like so many other Irish relicts the Crozier of Kells is still held in the British Museum.

       The Book of Armagh, which was also written at this time by Ferdomnach, a monk from Armagh in the Ulster Province, is the only book containing the New Testament in Latin that has was to survive the ongoing turmoil over the future Centuries of oppression, and it also contains the Confessio of St. Patrick. It was given over into the hands of it's Keepers, the Mac Moyre / Meic Maor Family, and was to  be held by them until 1662 AD as they were to receive a parcel of land on condition that they would be responsible for its safe keeping and protection. It too also can still be viewed at the Trinity College in Dublin.  

808 AD 104.Maurice / Muirgius the Dal Cuinn Ui Briuin Siol Muireadhaigh 31st King of Connacht led his warriors to the Assembly / Oenach ground at Tailtiu to support 102.Conor / Conchobar the Dal Cuinn southern Ui Niaill Clann Cholmain 23rd King of Meath against *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164th King of Ireland who then attacked them and drove them off. *100.Aed Oirdnide from then on only attacked the territories to the east of the River Shannon, besieging the borders of Meath, and made no further effort to discipline 104.Maurice / Muirgius who had previously entered the kingdom in the Midlands / Meath with ambitions of becoming the overlord of Leth Cuinn / Conn's Half, which would have then led onto the High Kingship of Tara. "For he who holds Tara holds Ireland."

       105.Finsnechta Cetharderc the Cu Corb Ui Dunlainge Ui Dunchada 22nd King of Leinster, died of a disease, and he had been the son of 104.Kelly / Ceallach the previous 19th King of Leinster, whose father, 103.Dunchad was the 15th King of Leinster who is the direct male line ancestor of the Ui Dunchada Sept. His son, 106.Faelan was to become the father of 107.Bran the future 25th King of Leinster, who would carry on the Ui Dunchada male line. There was now further trouble also brewing among their kinsmen the Cu Corb Ui Cheinnselaig Septs who also wanted to regain overall control there in their territory in Southern Leinster.   

808 - 809 AD *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164th King of Ireland besieged the territory in Southern Leinster once again, but this time he was defeated on the banks of the River Liffey. Before this setback he had already defeated the Septs in the kingdom of Ulaid and ravaged the north - east region there in the Ulster Province from the River Bann to Strangford Loch to express his overall authority there also. 

810 AD 100.Eochy / Eochaidh the Dal Fiatach 24th King of Ulaid in the east of Ulster, died, whose mother was Ablach an Ulster Princess. He was one of the 2 sons of 99.Fiachnae the previous 22nd King of Ulaid, one of the 2 sons of 98.Aed Roin the previous 19th King of Ulaid descended from 90.Forgg mac Dallain. The Dal Fiatach aristocratic male line would continue to survive in the Kingship through his 2 sons, especially through, 101.Aed, and also 101.Murray / Muireadach who would become the future 27th King.

      100.Cyrell / Cairell became the Dal Fiatach 25th King of Ulaid in the east of Ulster Province, who was a brother to 100.Eochy the previous 24th King of Ulaid, who was another of the 2 sons of 99.Fiachnae the previous 22nd King of Ulaid) while another brother 100.Lynch / Loingsech was to be the Abbot of Armagh. Also his nephew 101.Diarmait was to be a leader of the reforming clerics, the Cele De / Culdees (Servants of God) who had founded the monastery of Castledermot / Dysert Diarmait in Co Kildare in Central Southern Leinster on land donated by the Cu Corb Ui Bairrche King, descended from 91.Daire Barrach, who had been one of the 9 sons of 90.Cahir / Cathair Mor the 109th King of Tara / Ireland).

       105.Teague / Tadhg Mor and 105.Flaithnia, 2 of the sons of 104.Maurice / Muirgius the Dal Cuinn Ui Briuin Ai Siol Muireadhaigh 31st King of Connacht were killed by the Heberian Cianachta Luigni Sept from Corran, just north of Magh na Ai in the north of the Connacht Province, so he laid waste to their territories. 105.Teague / Tadhg Mor’s son, 106.Conor / Conchobar would become the future 38th King of Connacht and the direct male line ancestor of the O Connor / Ui Conchobair Septs, who would continue to carry their male line right on down to 113.Conor / Conchobar Maenmaige O Connor the 57th and last King of Connacht, who was to die in 1189 AD after the Anglo - Norman English Invasion.  

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