1141 - 1150 AD
1142 AD 109.Conor / Conchobar na Catharach O Brian the Heberian Dal gCais Ui Bloid Ui Turlough Ui mBriain King of Northern Munster / Thomond, "died" at his fortress at Killaloe in Co. Clare in the north - east of the Munster Province. (He had been a son of 108.Diarmait O Brian the previous 45th King of Cashel / Munster, who had died in 1118 AD). *109.Turlough O Brian, his brother, who had been the Prince / Tanaiste of Northern Munster / Thomond became the new Dalcassian 46eKing of Northern Munster / Thomond, and due to the recent demise of 109.Cormac 11 Mac Carthy the Heberian Eoghanacht King of Cashel / Munster he was to also become the 46e King of Cashel / Munster until 1167 AD. 110.Murtough O Brian, his son, became the new Prince / Tanaiste of Thomond, and his younger brother, 109.Teague / Tadhg Glae O Brian became the Prince / Tanaiste of North Eastern Munster / Ormond / Aur Muma territory situated in Co. Tipperary in the east of Munster, that overlapped the territory in Co. Kilkenny in the south - west of Southern Leinster, in the nearby Heremonian Ui Laoghaire Ui Connla kingdom of Ossory, which was all originally in Mogha's Half.
*109.Turlough O Brian as the new Heberian Dalcassian 46e King of Cashel / Munster also had personal ambitions of re - gaining the Kingship of Ireland for the Dal gCais Sept, and to assert his new found overall authority in this regard, he began laying siege to the various Irish Septs / Fines situated in the surrounding territories also in Mogha's Half, hoping to eventually bring this desired result about, and at first he besieged the territory there in Mogha's Half of the stronger Heremonian Cu Corb Septs in Co. Wexford in the east of Southern Leinster, which were now under the control of the "infamous" 113.Diarmait Mac Murrough na Gall - of the Foreigners the Heremonian Cu Corb Ui Cheinnselaig 59th King of Leinster. *109.Turlough O Brian then began an even more ambitious step by laying siege to the "north - west" of the Munster Province up into the Connacht Province, against the main Heremonian Dal Cuinn Ui Briuin Sept there who were under the leadership of *114.Turlough O Connor the Heremonian Dal Cuinn Ui Briuin Ai 55th King of Connacht who was now also the 181st King of Ireland. He then besieged his Heberian Eoghanachta kinsmen in Southern Munster who were now under the control of 110.Diarmait Mac Carthy who had his kingdom in Co. Kerry in the south - west of Munster. Meanwhile, unbeknown to him, his "younger" brother, 109.Teague Glae O Brian the Prince / Tanaiste of Aur Muma / Ormond in the North - East of Munster and the Heremonian Ui Laoghaire Ui Connla Gilla Patraic Sept in the adjacent kingdom in Co. Kilkenny / Ossory had made an "alliance" with *114.Turlough O Connor the Ui Briuin Ai 181st King of Ireland and also with the "infamous" 113.Diarmait Mac Murrough na Gall - of the Foreigners the Heremonian Cu Corb Ui Cheinnselaig 59th King of Leinster against him, and combining their efforts they besieged *109.Turlough O Brian the 46e King of Cashel / Munster in the south of Co. Limerick in Munster and a raging battle occurred in which *109.Turlough O Brian was "defeated." Among the Heberian Dalcassian aristocratic warrior Fines who were to be slain on this occasion were many of the O Brians, the O Kennedys, the O Deas, the O Shannons, the O Quins, the O Gradys, the O Hogans, the O Lynchs, the O Hehirs, the O Hearns and the Co. Clare O Nialls / O Nihills. (The end result of this particular battle would be that *114.Turlough O Connor the Heremonian Dal Cuinn Ui Briuin 181st King of Ireland was to regain complete "control" also over Munster Province.) After the conflict *109.Turlough O Brian the 46e King of Cashel / Munster was to flee to the north to *114.Turlough O Connor's opposition, *111.Murtough Mor Mac Loughlin / Muirchertach Mheic Lochlainn the Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain 55th / 57th King of Aileach, who had his kingdom and territory in the north of the Ulster Province who now also had "designes" on the Kingship of Ireland. Not only did *109.Turlough O Brian need personal protection for himself, but he also badly needed assistance to retrieve what he had already "lost," and while he was off the scene, his younger brother, 109.Teague Glae O Brian was to be promoted, to once again, "divide" the Heberian Septs / Fines further, by *114.Turlough O Connor, to be the Prince / Tanaiste of Northern Munster / Thomond instead, and 110.Diarmait Mac Carthy also became the Prince / Tanaiste of Southern Munster / Desmond.
Mellifont Abbey in Co. Louth in the north - east of Northern Leinster was to become the "first" Cistercian friary to be built by St. Malachy O Morgair, who was now the Catholic Archbishop of Armagh, on the previous church ruins there on the River Mattock / Matlock, which divided Co. Louth from Co. Meath in the east of Northern Leinster where the land there had been given to him previously by Donough O Carroll the Heremonian Dal Cuinn Colla Da Crioch King of Orghialla / Oriel, whose kingdom was then made up of territory in Co. Armagh and Co. Monaghan in the south of the Ulster Province and Co. Louth in the north - east of Northern Leinster. He also assisted him to establish the Cistercian Order, as the monks were sent over by St. Bernard from Clairvaux in France, and they were then to spread their order to the various Abbeys, including Bective, Boyle, Monaster Anenagh, Baltinglass and Shrule. Later on after the Anglo Norman English Invasion, Monasterboice, Jerpoint and Innis Fallen were also to come under Anglo - Norman influence and they were then to "exclude" the Celtic Irish monks, which would mean that the influence of St. Patrick's Celtic Catholic Church was coming to an "end." St. Malachy O Morgair was also given land in Ulster Province by *111.Murtough Mor Mac Loughlin the Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain King of Tyrone / Tir Eogan who was the 55th / 57th King of Aileach, who was now vying for the Kingship of Ireland, who also invited "French" monks from the Cistercian monastery of St. Bernard into the north - east of Ireland after the building of the Abbey at Mellifont on the River Mattock in Co. Louth had begun.
The Shrine to St. Manchan / Tempall Manchain was built this year at Boher in Co. Offaly in the mid - west of Southern Leinster.
1144 AD 115.Conor O Connor who had been appointed the Heremonian Dal Cuinn Ui Briuin Ai King of Meath, by his father, "died" this year, and his father, *114.Turlough O Connor the Heremonian Dal Cuinn Ui Briuin 55th King of Connacht and 181st King of Ireland also "divided" the Heberian Dal Cuinn "southern" Ui Niall Clann Cholmain kingdom there in Meath / Midhe in the south - east of Northern Leinster "again," and although it was all in his favour at the time, he made one fatal mistake for the future of Ireland, when he gave the"infamous" 113.Diarmait Mac Murrogh na Gall - of the Foreigners, who was the Heremonian Cu Corb Ui Cheinnselaig 59th King of Leinster, over - lordship of half of the eastern portion of Meath, during his divisions, which only further "spurred on" the "infamous" 113.Diarmait Mac Murough na Gall's own personal ambitions towards raising his whole profile even further pesonally also towards gaining the KIngship of Ireland.
1145 AD Christian O Conarchy this year became the first Catholic Abbot of Mellifont Abbey in Co. Louth in the north - east of Northern Leinster.
1146 AD
Both Cathasach O Casey, and Conor O Casey who was the Catholic Archbishop of Leinster, "died" this year.
The" Cistercian"
Bective Abbey
was founded at
Ceanannus Mor / Kells in
Co. Meath
in the south - east of Northern Leinster
and is situated on the way to Navan,
which was the "Cistercians" second
foundation in Ireland up until this time, and the ruins are still there to be seen.
1147 AD Durcan O Hara the Heberian Cianacht sub - Chief of Leyney in Co. Sligo in the north - west of the Connacht Province, "died" this year.
Daniel O Longergan was now the Heberian Dal gCais Ui Bloid Ui Turlough Chief of North - East Munster / Ormond.
1148 AD Patrick was now the Catholic Bishop of Limerick in Co. Limerick in the mid - north - west of the Munster Province.
A
Catholic "Religious Synod" was held at
Skerries on
Inis Patraic (The Island of
Patrick) off the coast of Dublin
in the north - east of Southern Leinster where
15 Catholic Bishops, including
St.
Malachy O Morgair,
Gelasius, and
500 Catholic Priests attended,
and where they
delegated St. Malachy to go to
Rome to represent them with Pope Eugene 111, but he was to
"die"
on the way on
November 1st at Clairvaux
in France, while he was with St,
Bernard who then interred him before the high altar in the Abbey Church
there.
*111.Murtough Mor Mac Loughlin the Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain King of Tyrone / Tir Eogan the 55 / 57th King of Aileach who had his kingdom in the Ulster Province decided to also renew his grandfather's policy of "divide and rule" there also, and to this end he "separated" the kingdom of the Ulaid Septs in the east of Ulster, between 4 of their "Chiefs" / tigernai rather then their "Kings" and this upset Donough O Carroll / Donnchad Ua Cerbaill the Heremonian Dal Cuinn Colla Da Crioch King of Orghialla in Southern Ulster, who although he was in reality *111.Murtough Mac Loughlin's vassal, he then personally "reinstated" 112.Cu Ulaid Mac Dunlevy / Mheic Duinn Sliebe as the Heremonian Dal Fiatach 64th King of Ulaid there.
*109.Turlough O Brian
the
Heberian
Dal gCais
Ui mBriain
King
of Northern Munster / Thomond
this year
founded Anenagh Abbey
as a Cistercian
monastery
on the River Camoge
in Co. Limerick
in the mid - north - west of the
Munster Province.
Diarmait O Kelly the Heremonian Dal Cuinn Colla Da Crioch Ui Maine King of Orghialla / Oriel who had his personal territory in Co. Louth in the north - east of Northern Leinster founded the "Dominican" friary of St. Mary at Louth / Lubhadh there, while St. Mochta's House there also in Louth was built, which was named after St. Mochta the first Catholic Bishop of Louth who had been originally appointed there by St. Patrick.
113.Dermott Mac Murrough na Gall - of the Foreigners the "infamous" Heremonian Cu Corb Ui Cheinnselaig 59th King of Leinster founded Baltinglass Abbey in Co. Wicklow in the south - east of Southern Leinster with "Cistercian" monks from Mellifont, and also the All Hallows monastery in Dublin in the north - east of Southern Leinster where the Trinity College now stands.
1150 AD The "Book of Leinster" was composed this year.
*111.Murtough
Mor
Mac Loughlin
At this time the Heremonian
Ui Laoghaire Ui
Connla kingdom of
Ossory
in
Co. Kilkenny in the
south - west of Southern Leinster was inhabited by the
many aristocratic warrior Gaelic Milesian
Septs of the
Mac Giolla Phadraigs
who after the coming Anglo Norman English Invasion
due to their proximity to Dublin
would eventually "Normanize" their own personal name to
Fitz Patrick
and among their other important
Septs
were the
O Brennans
/
Ui Braonain,
the O Kealys
/ Ui Caollaidhe,
the
O Phelans
/ Ui Faelain, the
Mac Breens
/ Mheic Brain,
the
O Muldowneys
/ Ui Maol Domhnaigh,
and
the O Carrolls / Ui
Cearbhaill.
Murray O Duffy
/
Muireadhach Ua Dubhthaigh the Catholc
Archbishop
of
Connacht,
"died" this year at the age of
75 years, and
*114.Turlough O Connor
the
55th King
of
Connacht
and
181st King of Ireland
removed the
"Cross of Cong," which was originally at
Tuam,
that contained a
splinter from the "True Cross of Christ" that he had
previously had made for the Archbishop
there and it
was now to gain its name from
the Cong Abbey
/
cunga
(narrow headland), to where he
had it removed, which is situated in
Co. Mayo above
Co.
Galway
in the south of the Connacht Province, where it
"separates"
Loch Corrib from
Loch Mask, which he had also founded and
endowed.
It
was during this period in time that the emerging Heberian
Eoghanacht Mac Carthy Sept
of
Southern Munster /
Desmond
/
Des Muma
were to also be in "conflict" with their kinsmen
the Heberian
Eoghanacht Moriartys / Ui
Muircheartaigh, and they
were to then "drive them out" of their territory in
Co.
Kerry
in the south - west of the
Munster Province.
The
"Cistercian" monks initially set up at
Mellifont
Abbey
now
also set up Abberule
Abbey
in
Co. Longford
in the north - west of
Northern Leinster.
Diarmait O Dempsey / Ua Diomasaigh the Heremonian Cu Corb Ui Failge / O Faly Clann Maelugra Prince / Tanaiste of Offaly in the north - west of Southern Leinster, this year founded a monastery also nearby at Monasterevin in Co. Kildare in Central Southern Leinster. He was directly descended from *90.Cahir / Cathair Mor who had been the 109th King of Tara / Ireland, through one of his 9 sons, 91.Ros Failge the "direct male line" ancestor of th Cu Corbe Ui Failge / Ui Conchobair Failghe / O Connor Faly Sept that included the O Dunne / Ui Riacain Sept and the O Dempsey / Ui Diomasaigh Sept.