Folks,
You are entering the figurative territory that Mike Rowley and I have been exploring for the last few months and I was waiting for more Y-DNA test results before posting about, but since you have broached the subject, here goes.
The annals entries do seem to give clues that the Delbna Nuadat were likely conquered and their territory seized by an outside group as early as 756 AD, so that later references to the Delbna Nuadat were referring to the literal territory name and not the current inhabitants of it, who were NOT the same people who originally gave their name to the territory. This happened fairly frequently in Irish records, which, of course, leads to massive confusion and misunderstanding.
Also, there were at least THREE (3) different, unrelated Uí Crimthainn tribes in Irish history: one in Connacht (AKA Cruffon), one in Meath, and one in Leinster. The one we are interested in is, of course, the one in Connacht, whose territory later became known as Cruffon, which apparently was previously the Delbna Nuadat territory.
756 AD
| AT756.6 | The battle of Belach Cró gained by Crimthann over the Delbna of Uí Maine, wherein Finn son of Arb, king of the Delbna, fell by Tipraite Finn, and a slaughter of the Delbna including him. And hence are the place-names Lochán Belaig Cró and Tipra Finn. | https://celt.ucc.ie/published/T100002A.html#p256 |
| AFM751.10 | The battle of Bealach Cro was gained by Crimhthann over the Dealbhna of Ui Maine, in which was slain Finn, son of Arbh, Lord of Dealbhna, at Tibra Finn, and the Dealbhna were slaughtered about him. From this are named Lochan Bealaigh Cro, and Tibra Finn. The Ui Maine were contending with them for the cantred between the Suca the River Suck and the Sinainn the River Shannon, for this was called the cantred of Dealbhna. Of this was said:
The battle of the speckled hosts of Bealach Cro,
pitiable the journey of the Dealbhna to it.
Crimhthann the warlike brought destruction
on the fierce Dealbhna Nuadhat.
Finn, son of Arbh, chief king of Dealbhna,
was wounded with large spears,
Of the fierce battle was he chief,
until he fell at Tibra Finn. | https://celt.ucc.ie/published/T100005A.html#p355 |
Note: These annals entries above give rise to some plausible speculation that Uí Crimthainn (Cruffon) was founded at this point in time and consisted of the entirety of the Delbna Nuadat territory. Further, it causes some interesting questions to arise as to exactly who the Uí Maini were until ~1048 AD; after which point it is apparent that the non Dál Cuind Ó Cellaig had assumed the ascendancy.
757 AD
879 AD
Note: It is unclear as to which Uí Crimthainn these annals entries above refer to.
1028 AD
| AU1029.3 | Brian ua Conchobuir, heir designate of Connacht, was killed by his own people. | https://celt.ucc.ie/published/T100001A.html#p467 |
| AT1027.10 | Brian son of Cathal Ó Conchobhair, crown prince of Connacht, was killed by Maelseachnaill Ó Maelruanaidh, king of Crimthann. | https://celt.ucc.ie/published/T100002A.html#p368 |
| AI1028.6 | Brian Ua Conchobuir, royal heir of Connachta, dies. | https://celt.ucc.ie/published/T100004.html#p197 |
| AFM1029.3 | Brian Ua Conchobhair, royal heir of Connaught, was slain by Maelseachlainn, son of Maelruanaidh, lord of Crumhthann. | https://celt.ucc.ie/published/T100005B.html#p817 |
| CS1028.5 | Brian son of Cathal ua Conchobuir, heir designate of Connacht, was killed by Mael Sechnaill ua Maílruanaidh. | https://celt.ucc.ie/published/T100016.html#p227 |
1030 AD
Note: Although there is nothing written explicitly connecting this event above with the slaying of Tadc inda Eich Gil Ó Conchobair below, it is easy to surmise the 2 events are somehow connected.
| AU1030.5 | Tadc ua Conchobuir, king of Connacht, and In Got, king of Mide, were killed. | https://celt.ucc.ie/published/T100001A.html#p467 |
| AU1030.12 | Tadc son of Cathal son of Conchobor was killed by Mael Sechnaill ua Maíl Ruanaid, king of Cremthann. | https://celt.ucc.ie/published/T100001A.html#p469 |
| AT1030.10 | Tadhg son of Cathal son of Conchobhar, king of Connacht, was killed by Ó Maelruanaidh, king of Crumthann, and by the Clan Coscraidh including Ecsaide Ó Cathluain. | https://celt.ucc.ie/published/T100002A.html#p370 |
| AT1030.12 | Domhnall the Stammerer, king of Meath, was treacherously killed by his own soldier, Cú Cairn Ó Cobhthaigh. | https://celt.ucc.ie/published/T100002A.html#p371 |
| AI1030.5 | Tadc Ua Conchobuir, king of Connachta, was slain by the Connachta. | https://celt.ucc.ie/published/T100004.html#p197 |
| AI1030.6 | Domnall Got, king of Mide, was killed. | https://celt.ucc.ie/published/T100004.html#p197 |
| AFM1030.12* | Tadhg of the White Steed Ua Conchobhair, King of Connaught, was slain by the Gott, i. e. Maelseachlainn, grandson of Maelruanaidh, lord of Meath and Cremthainne. | https://celt.ucc.ie/published/T100005B.html#p819 |
| AFM1030.20 | Domhnall Gott, King of Meath, was treacherously slain by Cucaratt Ua Cobhthaigh, one of his own soldiers. | https://celt.ucc.ie/published/T100005B.html#p821 |
| AB1030.K7 | Tadg mac Cathail meic Concubair interfectus est o Maelsecnaill u Mailruanaid ríg Crumthaind. | https://celt.ucc.ie/published/G100012.html#p329 |
| CS1030.9 | Tadc son of Cathal son of Conchobor, king of Connacht, was killed by Mael Sechnaill ua Maílruanaidh, king of Crimthann, and by Clann Coscraidh with Escaidi ua Catluain. | https://celt.ucc.ie/published/T100016.html#p229 |
| CS1030.10 | Domnall Got, king of Mide, was killed treacherously by Cúcaird ua Maílchallann, his own mercenary. | https://celt.ucc.ie/published/T100016.html#p229 |
*Note: AFM1030.12 appears to be a garbled entry that the other entries clear up and expound upon. That is, the slaying of Domnall Got ríg Mide and the slaying of Tadc inda Eich Gil Ó Conchobair were 2 separate and independent events that AFM1030.12 egregiously conflated.
1036 AD
Note: AI1036.3 above along with AU1029.3 previously provide a crucial link between the Uí Crimthainn (Cruffon) and the Uí Briúin. It is not as definitive as could be wished for since it does not explicitly say Cormac is the son of Máel Rúanada, but the combination of all these annals entries STRONGLY points to a genealogy of Máel Sechnaill son of Cormac son of Máel Rúanada and calls them Uí Briúin.
1048 AD
| AT1048.13 | Then came the crown prince of Uí Maine, and Ó Maolruanaidh and Ó Flannacán and the cleric Ó Taidhg and Mac Buadacháin, crown prince of Delbna, and he routed them and killed them all. | https://celt.ucc.ie/published/T100002A.html#p389 |
| AFM1048.17 | A predatory excursion was made by the royal heirs or chieftains of Ui-Maine into Dealbhna where the royal chieftains were all slain, namely, Ua Maelruanaidh, Ua Flannagain, the Cleireach Ua Taidhg, and Mac Buadhachain, royal heir of Dealbhna. | https://celt.ucc.ie/published/T100005B.html#p855 |
Note: These annals entries above strongly appear to be related to the Delbna Nuadat territory, not the Delbna bEthra territory. The annals entries for the year 756 AD point to the STRONG likelihood that Uí Crimthainn (Cruffon) was comprised of the entirety of the Delbna Nuadat territory at this time in 1048 AD.
Relooking at the above annals entries in light of the Y-DNA results, particularly of R1b-FGC5939, it begins to look like the Uí Crimthainn of Cruffon were Uí Briúin genetically, not Uí Maini. Further, it would appear that the Cland Maíl Rúanada, which for centuries has been linked to the Síl Muiredaig O’Conor, are actually Uí Briúin Seóla (assuming R1b-FGC5939 is indeed Uí Briúin Seóla) based on the number of Mac Dermott and Mac Donagh men appearing there now and NOT under R1b-BY18120 with the Síl Muiredaig O’Conor. Further, it appears they were originally chieftains of the Uí Crimthainn of Cruffon. This is a major discrepancy in the genealogies and bears a lot more scrutiny.
R1b-FGC5939 is increasingly becoming an intriguing clade. It definitely appears to be made up of more than the Uí Briúin Seóla vassal families. I do still think Kenny/etc. most likely comes from the Ó Cennétig family mentioned in the
Muinter Murcháda Tract. But Bill Flanigan may well indeed descend from the Cruffon Ó Flannacáin family mentioned in 1048 AD.
We need a lot more men with a much wider variety of surnames to WGS test. This will help us sort out the various families under R1b-FGC5939. I think there are some interesting times ahead.