811 - 820 AD

811 AD The Termon (Sanctuary) at Tallaght in Co. Dublin in the north - east of Southern Leinster was violated by *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164 th King of Ireland, who was besieging Southern Leinster again to express his overall authority and the community there then boycotted the Assembly Fair / Oenach at Tailten for imposing on their sanctuary area.

     Nuadu the Abbot of Armagh paid a visit to the Connacht Province with some of the relics of St. Patrick and to introduce his Cain Phatraic Law of Patrick to try and promote peace in the region.

      101.Diarmait, (a grandson of 98.Aed Roin the previous Dal Fiatach 19th King of Ulaid in Ulster Province,) had founded a hermitage at Castledermot / Dysert Diarmata in Co. Kildare in Central Southern Leinster, where he was the leader of the religious reformers the Celi De (Culdees / Clients of God), on land previously given to him there by 104.Bran Ardchenn the Cu Corb Ui Dunlainge 21st King of Leinster, who had been a disciple of St. Comgall. Dysert Diarmata then became a daughter house of the Bangor monastery on the east coast of Ulster, even though it was in Southern Leinster. Previously a connection was made between Ulster and Southern Leinster when 91.St. Columbanus, who was originally from Southern Leinster, had gone to Bangor monastery to join up with St. Comgall before he had set sail for the Continent way back in 590 AD.

      A Viking raiding party this year were annihilated in the north - east of the Ulster  Province after they were stopped dead in their tracks by the Septs in the kingdom of Ulaid / Ulidia there.

812 AD The Danish Vikings now invaded the Connacht Province, and the Munster Province especially the Skellig Michael / Scelig Micil monastery in Co. Kerry in the south - west of Munster, that had been named after the Archangel St. Michael, while other Vikings raided the mainland within Co. Kerry and were defeated there by the Heberian Eoghanachta Locha Lein Sept. They also carried out a raid in Co. Mayo further north in the mid - west of Connacht, where they were trapped and annihilated by the Dal Cuinn Ui Briuin Ui Maille / O Malley Sept. Despite these few setbacks on the mainland of Ireland, during this period they were to develop Scandinavian settlements in the northern islands and the Hebrides, and this then allowed them to be much closer to Ireland itself, and from now on much larger Viking forces were to appear. 

     104.Maurice / Muirgius the Heremonian Dal Cuinn Ui Briuin Siol Muireadhaigh 31st King of Connacht who was continuing to ensure his overall authority in the Connacht Province besieged the Calraige Luirg Sept there in Connacht, who were a subject Sept of the Heremonian Dal Cuinn Ui Ailello Sept there, and later on also laid siege to the territory in the southern part of Connacht.

813 AD 105.Muirenn  the Abbess of Kildare, died, who had been a sister to 105.Finsnechta Cetharderc the previously deceased Cu Corb Ui Dunlainge Ui Dunchada 22nd King of Leinster.

814 AD With the death of 104.Aed mac Colgan in 738 AD the Heremonian Cu Corb Ui Cheinnselaig Sept had been devastated as to any chance of regaining the Kingship of Leinster, as by now there had been 6 Cu Corb Ui Dunlainge Kings of Leinster in a row and the Ui Cheinnselaig in a further attempt to try and regain their position in the scheme of things was again defeated by 105.Kelly / Ceallach and 105.Muiredach, the 2 sons of 104.Bran Ardchenn the previous Ui Dunlainge Ui Muireadhaigh 21st King of Leinster. With the previous death of 105.Finsnechta Cetharderc the Ui Dunlainge Ui Dunchada 22nd King of Leinster, 105.Murray / Muireadach from the Cu Corb Ui Dunlainge Ui Faelain Sept had been appointed the 23rd joint King of Leinster (by courtesy of *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164th King of Ireland), (The Cu Corb Ui Muireadhaigh Sept were to be the next in line for the Kingship.)

814 AD The Oratory of St. Fintan was constructed this year at Howth in Co. Dublin in the north - east of Southern Leinster, and the Holy Well that was also there at this time is still there to see today.

       104.Maurice / Muirgius the Dal Cuinn Ui Briuin Ai Siol Muireadhaigh 31st King of Connacht had his territory at Aughrim / Echdruim in the Connacht Province were he was dependent on the monastery at Clonmacnoise on the eastern side of the River Shannon in Co. Offaly in the the territory of the Dal Cuinn Ui Maine Septs where Mael Duin the Bishop (supervisor) there was killed. He and Foirchellach the Abbot of Clonmacnoise attacked the Dal Cuinn Ui Maine Septs who were south of the River Suck in retaliation, and many were killed and 101.Maurice / Muirgius as the King of Connacht then imposed the Law of Kieran / Ciaran over Connacht, which was to be his last important act as the King.

815 AD 104.Maurice / Muirgius the Dal Cuinn Ui Briuin Ai Siol Muireadhaigh 31st King of Connacht, died, who had been all about expanding the Dal Cuinn Ui Briuin Ai Siol Muireadhaigh territory further and their authority over the Ciarraige Septs and any other Sept that was now existing in Central Connacht Province and because of this he was therefore always up against *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164 th King of Ireland. Despite this, during his tenure he had strengthened the Siol Muireadhaigh (Sil Murray) Sept who were now the most dominant one among all of the Ui Briuin Septs and the future Ui Briuin Ai Siol Muireadhaigh succession to the Kingship of Connacht was to see the sovereignty in Connacht pass from father to son now for 7 generations. He was also to be the direct male line ancestor of the Mac Dermots / Mheic Diarmata in their kingdom of Mag Luirg and their Sept the Mac Donaghs / Mheic Donnchadha who were to take over of Tir Ailello (The Land of 90.Ailill) in the north of Connacht. He was to be a brother to 104.Diarmait the future 33rd King of Connacht and 104.Finsnechta the future 37th King of Connacht, but it would only be his particular male that would continue on in the Kingship through his two sons, 105.Cathal the future 34th King of Connacht, and especially 105.Teague / Tadhg Mor. 104.Maurice / Muirgius had been a son of 103.Tomaltach, a son of 102.Murgal, one of the 4 sons of 101.Indrechtach the previous 21st King of Connacht, one of the 2 sons of 100.Murray / Muireadach the 18th King of Connacht the direct male line ancestor of the Siol Muireadhaigh Sept.

     103.Mael Cothaid became the Dal Cuinn Ui Briuin Ai Siol Muireadhaigh Siol Cathail 32nd King of Connacht, who was one of the 2 sons of 102.Fogartach, one of the 4 sons of 101.Cathal the previous 23rd King of Connacht the direct male line ancestor of the Siol Cathail Sept, who was one of the 2 sons of 100.Murray / Muireadach the 18th King of Connacht the direct male line ancestor of the Siol Muireadhaigh (Sil Murray) Sept.

       100.Olchobur who may have been / or not been, the the Eoghanacht Aine Ui Endae 20b King of Munster, died, which was to end his Heberian Eoghanacht Aine male line to the Kingship of Munster altogether, as he was a son of 99.Dub Indrecht, a son of 98.Cathussach, whose father was 97.Uisnech, one of the 2 sons of 96.Mael Umai, a son of 95.Cuan the previous12th King of Munster descended from 93.Enda the direct male line ancestor of the Ui Endae Sept. He was a grandson of 91.Ailill the direct male line ancestor of the Eoghanacht Aine Sept, one of the 2 sons of 90.Nad Froich the 2nd King of Cashel / Munster, one of the 7 sons of 89.Conall Corc.

      100.Artri became the Eoghanacht Glendamnach 21st King of Cashel / Munster, who was a son of 99.Cathal the previous 19th King of Cashel / Munster, a son of 98.Finguine the 16th King of Munster, one of the 2 sons of 97.Cathal Cu Cen Mathair - the Motherless Hound the 14th King of Cashel / Munster, a son of 96.Cathal the 10th King of Cashel / Munster, descended from 93.Criffan / Crimthann the 5th King of Cashell / Munster the direct male line ancestor of the Glendamnach Septs. 100.Artri was to be the first to be ordained as a King on Irish soil by the Celtic Catholic Church, who by now had replaced the poets who had previously carried out this particular ceremony.          

     100.Colman, the brother of *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164 th King of Ireland was to be killed in dispute with his northern Ui Niaill kinsmen the Heremonian Dal Cuinn Cenel Conaill Sept, and the followers of 94.St. Columbcille went to Tara to curse *100.Aed Oirdnide for the conflict that had occurred.

816 AD The Tuamgraney monastery in Co. Clare in the north - west of the Munster Province was also attacked by the Vikings this year.

817 AD 100.Aed Oirdnide the Dal Cuinn northern Ui Niaill Cenel nEogain 164th King of Ireland, who had by now reigned for 25 years, besieged the Leinster Province again, and was later to die this year at Ath Da Fearta in Magh Conaille on the Co. Louth border with the Ulster Province. 

     The monks on the holy island of Iona in the sea to the north - east of the Ulster Province could take no more of the Viking raids and they left the island for good and set up permanently at Kells / Ceanannus Mor (The Great Head Fort) in Co. Meath in the south - east of Northern Leinster.

      Mael Duin, the son of Kennelly / Cenn Faelad of Raphoe in Tir Conaill / Tyrconnell / Co. Donegal in the north - west of the Ulster Province was killed along with many of 94.St. Columbcille’s followers this year.

818 AD 103.Mael Cothaid, the son of 102.Fagartach, was still the Dal Cuinn Ui Briuin Ai Siol Muireadhaigh Siol Cathail 32nd King of Connacht.

       The Dal Cuinn Ui Niaill Septs tried to divide the authority in Southern Leinster to extend their Overlordship further there. 

       This year, Cuanu the Abbot of Louth in the far north - east of Northern Leinster took the Shrine of St. Mochta, who had been its founder, into exile to the Munster Province to get away from the fury of *100.Aed Oirdnide the Dal Cuinn northern Ui Niaill 159th King of Ireland.      

819 - 833 AD  *102.Conor / Conchobar was the Dal Cuinn southern Ui Niaill Clann Cholmain 165th King of Ireland, who was a son of *101.Donough / Donnchad the previous 163rd King of Ireland, the son of *100.Donnell / Domhnall the previous 161st King of Ireland, who had been the first from the Clann Cholmain Sept to be a King of Ireland, descended from 94.Colman Mor the 6th King of Meath, who was one of the 3 sons of 93.Diamait mac Carroll the previous 133rd King of Tara / Ireland.

       100.Cyrell / Cairell the Dal Fiatach 25th King of Ulaid who had his territory in the  east of Ulster Province, died, who was one of the 2 sons of 99.Fiachnae the previous 22nd King of Ulaid, who was descended from 95.Mael Cobo the 13th King of the Ulaid. His particular Dal Fiatach male line was to end with his demise, but it was still to be carried forward to the Kingships through his brother, 100.Eochy / Eochaidh the previous 24th King of Ulaid.  

      102.Mael Bressail became the Irian Dal nAraidi Ui Echach Cobo 26th King of Ulaid in the north - east of the Ulster Province, who was a son of 101.Ailill a previous Ui Echach Cobo King, the son of 100.Felim / Fedelmid, a son of 99.Mael Cothaig, one of the 2 sons of 98.Fergus the previous 16th King of Ulaid, descended from 91.Eochy / Echu, one of the 3 sons of 90.Crond Ba Drui descended from 62.Rory Mor the 84th King of Tara / Ireland and 37.Ir (Irians.)   

820 AD The Celtic High Crosses of Kilree / Cill Ri (The King's church) and Killamery / Cill Lamhrai (Lambrach's church) in Co. Kilkenny in the south - west of Southern Leinster were constructed this year.

                   Home Page                     Return to Celtic Heritage                     +On to 821 - 830 AD.