1125
A.D. 1125. Toirdhealbhach son of Diarmaid Ó Briain turned against Toirdhealbhach son of Ruaidhrí Ó Conchobhair, and Murchadh Ó Maoil Sheachlainn, king of Midhe, destroyed the bridges of Athlone and Áth Crocha when he heard of that.
A hosting by Toirdhealbhach son of Ruaidhrí to Achadh Bó and from thence to Dublin. He took the kingship of Leinster and banished Murchadh Ó Maoil Sheachlainn, king of Midhe, and set up three kingships over Midhe after Ó Maoil Sheachlainn, and Domhnall [Ó Cearbhaill] over Oirghialla.
A battle by Diarmaid Ó Maoil Sheachlainn in which
Ranna son of Donnchadh son of Mac Murchadha died.
1126
A.D. 1126. A battle between Eochaidh Ó Mathghamhna, king of Ulaidh, and Aodh Mac Duinn Shléibhe, the other king of Ulaidh, in which they were both killed, with slaughter of the Ulaidh.
A hosting by Toirdhealbhach son of Ruaidhrí [Ó Conchobhair] to the south of Osraighe, and Cormac son of Muireadhach Mac Carthaigh, king of Munster, went on another great hosting against them to give them battle, and Toirdhealbhach turned back without giving battle or obtaining hostages.
A great foray by Ruaidhrí Ó Canannáin, king of Cinéal Conaill, into Connacht after Toirdhealbhach.
A hosting by the Connachtmen to avenge that foray, and they reached Ráith Both, and took great preys from there.
Cormac son of Mac Carthaigh was deposed by the nobles of Munster, and he went to Lismore on a pilgrimage, and took the tonsure there. He built a church at Cashel and twelve churches at Lismore. Donnchadh son of Muireadhach Mac Carthaigh took the kingship in his presence.
A hosting by Toirdhealbhach son of Ruaidhrí, together with the nobles of Leath Cuinn, and Conchobhar and Toirdhealbhach, the two sons of Diarmaid Ó Briain, to Cork. Donnchadh son of Mac Carthaigh, Donnchadh son of Cú Mara son of Brodchú Ó Mathghamhna, Aonghus Ó Donnchadha, and Ó Caoimh, together with the other nobles of Desmond, went [against them], but they parted in peace, and they made submission side by side to Ruaidhrí's son.
Toirdhealbhach son of Ruaidhrí went from thence to Leinster and took their hostages and the hostages of the men of Midhe and Dublin, and left Conchobhar, his son, in the kingship of Dublin.
Maghnus son of Ardghar Mac Lochlainn took the kingship of Fearnmhagh, and he inflicted a defeat on Tighearnán Ó Ruairc at Áth Droithid, in which Ó Ciardha, king of Cairbre, Ó Dubhda, and Ó Raighilligh were killed.
Another defeat was inflicted by Maghnus son of Mac Lochlainn on Tighearnán Ó Ruairc at Ardee, in which slaughter was inflicted on the Uí Bhriúin.
A hosting by Conchobhar son of Ardghar Mac Lochlainn and the [men of] the north of Ireland into Midhe, and they burned Trim, including the belfry and church, with many people in them.
Conchobhar and Toirdhealbhach, two sons of Diarmaid Ó Briain, turned against Toirdhealbhach son of Ruaidhrí, and went to Lismore, and clasped hands with Cormac Mac Carthaigh, and brought him back to lay life. He took the kingship of Munster again, and banished Donnchadh son of Mac Carthaigh to Connacht.
The Galls of Dublin turned against Toirdhealbhach sore of Ruaidhrí, and drove out Conchobhar son of Toirdhealbhach son of Ruaidhrí.
1128
A.D. 1128. Maghnus son of Ardghar Mac Lochlainn, king of Oileach, was treacherously killed by Ó Gairmleadhaigh.
A great fleet [was brought] by Donnchadh son of Mac Carthaigh, and by the son of An Fionnshúileach Ó Domhnaill, and by the son of An Fionnshúileach Ó Muircheartaigh, and by Fionghuine Ó Caoimh, and by Gearr na gCuinneóg Ó Bric to Ciarraighe Luachra. Ó Conchobhair committed treachery on them, and they came in pursuit from there into Uí Eachach, and he was not long in Munster again till he was banished to Connacht.
1128
A.D. 1129. Diarmaid Ó Maoil Sheachlainn, king of Midhe, was killed by Tighearnán Ó Ruairc, together with the nobles of Iarthar Midhe at Craobh Treithni. Aonghus Ó Caoindealbháin, king of Laoghaire, and Amalghaidh son of Mac Seanáin, who was called Cochall Fliuch, king of Fearnmhagh, were killed in the same battle.
1130-1
A hosting by Conchobhar son of Ardghar Mac Lochlainn along with Cinéal Eóghain and Cinéal Conaill and the Oirghialla into Ulaidh, and they plundered Druim Both, including round tower, and oratory, and books. The Ulaidh came to Cnoc Cluana to meet them in battle, and the Ulaidh were defeated and slaughter inflicted on them.
A hosting by Conchobhar Ó Lochlainn with the Ulaidh, the Oirghialla, and Cinéal Conaill into Connacht, and the Connachtmen and the Cinéal Conaill fought a battle on Sliabh Seaghsa, in which Cinéal Conaill were defeated, and An Garbhánach Ó Baoighill and Conn Ó Maoil Ghaoithe killed, with slaughter of Cinéal Conaill around them. Toirdhealbhach son of Ruaidhrí, king of Connacht, and Conchobhar son of Mac Lochlainn, king of Oileach, made peace, and the forces dispersed to their own territories on every side.
The Ulaidh and the men of Fearnmhagh [went] beyond Athlone into the territory of Fir Rois, and Tighearnán Ó Ruairc with the Craobh Fearnmhuighe met them at Muine Uachtair Imrimhe, where they fought a battle, in which the Ulaidh were defeated, and Raghnall Ó hEochadha, king of Ulaidh, Cú Midhe Ó Críochain, king of Fearnmhagh and Oirghialla, Aodh, his son, and Donn Sléibhe Ó hOireachtaigh, king of Uí Mhéith, were killed, with slaughter of the Ulaidh, [the men of] Fearnmhagh, and the Uí Mhéith.
A fleet [was brought] by Donnchadh son of Muireadhach Mac Carthaigh to Connacht, in spite of the peace between Toirdhealbhach son of Ruaidhrí and Cormac Mac Carthaigh ... and he perpetrated plunders and burnings.
1132
A.D. 1132. A hosting on land by Cormac son of Mac Carthaigh and the nobles of Leath Mogha into ... and Uí Eachach and Corca Laoighdhe, and the fleet of Leath Mogha [came] by sea to meet them, and they demolished the castle of Bun Gaillmhe, and plundered and burned the town. The defeat of An Cloidhe [was inflicted] on the following day on [the men of] Iarthar Connacht by the same fleet, and Conchobhar Ó Flaithbheartaigh, king of Iarthar Connacht, was killed, with slaughter of his people.
1134
A.D. 1134. A church built by Cormac son of Muireadhach Mac Carthaigh at Cashel was consecrated with great honour by the archbishop of Cashel and the bishops of Munster.
Maol Maodhóg Ó Morgair entered into the succession of Patrick, with the prayers of the men of Ireland.
Cearbhall son of the son of Faolán [Ó Broin], king of Uí Fhaoláin, was killed at Kildare by Donnchadh Ó Conchobhair Failghe, with slaughter of the Uí Fhaoláin, as he was defending the abbacy for his daughter.
A troop [was brought] by Cormac son of Muireadhach Mac Carthaigh and Toirdhealbhach, Tadhg, and Conchobhar, three sons of Toirdhealbhach son of Tadhg son of Brian Bóramha, into Connacht. A great part of an Ruadhbheitheach was cut and burned, and they killed Cathal Ó Conchobhair and Giolla na Naomh Ó Floinn, and burned Dún Modhairn, Dún Mór, and the greater part of Connacht. The men of Midhe came from the east against them, and they levelled and demolished the fort of Athlone.
Cormac son of Mac Carthaigh again assembled the Munstermen, Leinstermen, Conmhaicne, the men of Midhe, the Galls of Dublin, Waterford, Wexford and Cork, and the Uí Eachach and Corca Laoighdhe on sea, in order to proceed into Connacht. Muireadhach Ó Dubhthaigh, archbishop of Connacht, came from Toirdhealbhach son of Ruaidhrí, king of Connacht, to make peace between Leath Cuinn and Leath Mogha. Cormac made peace with Toirdhealbhach in honour of the archbishop, and he himself went to Abhall Ceithearnaigh to confirm the peace with Toirdhealbhach.
A rupture of the peace between Cormac son of Mac Carrthaigh and Conchobhar son of Diarmaid Ó Briain and his kinsmen. Síol Briain made an encampment against Sliocht Eóghain. Shocht Eóghain went into the encampment of Síol Briain and carried off great plunders from it, and Donnchadh son of Brian Gleanna Maidhir son of Murchadh an Sgeith Ghirr [Ó Briain] and his son were killed, and many others along with them.
A defeat [inflicted] by the Osraighe on the Uí Chinnsealaigh, in which Úghaire Ó Tuathail, king of Uí Chinnsealaigh, was killed, with slaughter of his people.
A hosting by Conchobhar son of Diarmaid Ó Briain and the Osraighe, together with the Galls of Waterford; into Uí Chinnsealaigh. Mac Murchadha with the Galls of Dublin and Uí Chinnsealaigh defeated that force, and slaughter was inflicted on [the Galls of] Waterford and the Osraighe.
1135
A.D. 1135. Derry, including houses and church, Ráith Lúraigh, Ráith Both, Cluain Ioraird, Roscommon, Eanach Dúin, part of Cunga Fhéichín, part of Lismore, and all Lann Eala were burned in the same year.
A foray by Cormac son of Muireadhach Mac Carthaigh and [the men of] Desmond, and Cú Mara Mór son of Mac Con Mara, king of Uí Chaisín, was killed by them. A grievous pursuit was inflicted on them at Tóchar Cluana Eidhneach, and Cian son of Donnchadh Donn son of Cú Mara son of Brodchú [Ó Mathghamhna], king of Uí Eachach, Fionghuine Ó Caoimh, Mathghamhain Ó Donnchadha, Ó Rinn, the son of Lochlainn Ó Cinn Fhaoladh, and Aodh Ó Conchobhair Corca Mruadh were killed.
1136
A foray by Donnchadh son of Cú Chaisil Ó Cearbhaill, king of Fearnmhagh, to Lusga in Midhe. The Galls of Dublin and all Fine Gall overtook him above Drogheda, and they fought a battle in which Raghnall son of Pól Mac Adhmainn was killed, with slaughter of the Galls of Dublin and Midhe around him.
Ceall Íde was plundered by Toirdhealbhach son of Diarmaid Ó Briain and his kinsmen. Ó Cinn Fhaoladh, king of Uí Chonaill Gabhra, made peace on account of the foray.
The son of the son of Tadhg Ó Briain and the son of Maol Sheachlainn Ó Bric, king of the Deise, were killed by Cormac son of Mac Carthaigh, and he himself took the kingship of Munster and Osraighe.
Ráith Muighe Deiscirt was burned and plundered, including house and church, and much ill besides was wrought in Ciarraighe Luachra by Toirdhealbhach son of Diarmaid Ó Briain and [the men of] Thomond.
1137
A hosting by Conchobhar [Ó Briain] and Toirdhealbhach son of Diarmaid Ó Briain with [the men of] Thomond, and by the son of Murchadh grandson of Maol na mBó with the