Question: Where did Cernach Mac Fogartaig's father die?

Knowledge 1: Cernach mac Fogartaig
Cernach mac Fogartaig (died 738) was a king in southern Brega of the Uí Chernaig sept of Lagore of the Síl nÁedo Sláine branch of the southern Ui Neill.He was the son of the high king Fogartach mac Néill (died 724).He appears as a leader of the Uí Chernaig in the years 737-738.The Uí Chernaig sept had a feud with the Uí Chonaing sept of Cnogba (Knowth) in North Brega going back to the assassination of Cernach's grandfather Niall mac Cernaig Sotal (died 701) by Írgalach mac Conaing (died 702).In 737 the Uí Chonaing King of Brega Conaing mac Amalgado (died 742) defeated Cernach and his kinsman Cathal mac Áeda at the Battle of Lia Ailbe in Mag nAilbe(Moynalvy,Co.Meath) and Cathal, leader of the Uí Chernaig, was slain.Cernach seems to have had a bad reputation and the "Annals of Ulster" record in 738 at his death:Cernach, son of Fogartach, is treacherously killed by his own criminal adherents, and the calves of the cows and the women of this lower world for long bewailed him. [SEP] Knowledge 2: Fogartach mac Néill
Fogartach Mac'Artain (died 724), sometimes called Fogartach ua Cernaich, was an Irish king who is reckoned a High King of Ireland.He belonged to the Uí Chernaig sept of the Síl nÁedo Sláine branch of the southern Uí Néill.He was King of Brega and was the son of Niall mac Cernaig Sotal (died 701) and great-grandson of the high king Diarmait mac Áedo Sláine (died 665).
Knowledge 1: Cernach mac Fogartaig
Cernach mac Fogartaig (died 738) was a king in southern Brega of the Uí Chernaig sept of Lagore of the Síl nÁedo Sláine branch of the southern Ui Neill.He was the son of the high king Fogartach mac Néill (died 724).He appears as a leader of the Uí Chernaig in the years 737-738.The Uí Chernaig sept had a feud with the Uí Chonaing sept of Cnogba (Knowth) in North Brega going back to the assassination of Cernach's grandfather Niall mac Cernaig Sotal (died 701) by Írgalach mac Conaing (died 702).In 737 the Uí Chonaing King of Brega Conaing mac Amalgado (died 742) defeated Cernach and his kinsman Cathal mac Áeda at the Battle of Lia Ailbe in Mag nAilbe(Moynalvy,Co.Meath) and Cathal, leader of the Uí Chernaig, was slain.Cernach seems to have had a bad reputation and the "Annals of Ulster" record in 738 at his death:Cernach, son of Fogartach, is treacherously killed by his own criminal adherents, and the calves of the cows and the women of this lower world for long bewailed him. [SEP] Knowledge 2: Fergus mac Fogartaig
Fergus mac Fogartaig( died 751)( or Fergal) was King of South Brega of the Uí Chernaig sept of Lagore of the Síl n Áedo Sláine branch of the southern Ui Neill.He was the son of the high king Fogartach mac Néill( died 724).He ruled from 738 to 751.The annals do not mention any events regarding him other than his death obit.His death obit, though, in the" Annals of Ulster" has significance as the first time the title King of Southern Brega(" regis Deisceird Breg") is used.His sons included Máel Dúin mac Fergusa( died 785) and Cernach mac Fergusa( died 805), both called Kings of Loch Gabor as well as Ailill mac Fergusa( died 800), styled King of South Brega.
Knowledge 1: Cernach mac Fogartaig
Cernach mac Fogartaig (died 738) was a king in southern Brega of the Uí Chernaig sept of Lagore of the Síl nÁedo Sláine branch of the southern Ui Neill.He was the son of the high king Fogartach mac Néill (died 724).He appears as a leader of the Uí Chernaig in the years 737-738.The Uí Chernaig sept had a feud with the Uí Chonaing sept of Cnogba (Knowth) in North Brega going back to the assassination of Cernach's grandfather Niall mac Cernaig Sotal (died 701) by Írgalach mac Conaing (died 702).In 737 the Uí Chonaing King of Brega Conaing mac Amalgado (died 742) defeated Cernach and his kinsman Cathal mac Áeda at the Battle of Lia Ailbe in Mag nAilbe(Moynalvy,Co.Meath) and Cathal, leader of the Uí Chernaig, was slain.Cernach seems to have had a bad reputation and the "Annals of Ulster" record in 738 at his death:Cernach, son of Fogartach, is treacherously killed by his own criminal adherents, and the calves of the cows and the women of this lower world for long bewailed him. [SEP] Knowledge 2: Coirpre mac Fogartaig
Coirpre mac Fogartaig( died 771) was a King of Brega of the Uí Chernaig sept of Lagore of the Síl n Áedo Sláine branch of the southern Ui Neill.He was the son of the high king Fogartach mac Néill( died 724).He is not listed in the poem on the Síl n Áedo Sláine rulers in the" Book of Leinster", however at his death obit in the annals for 771 he is called King of Brega.His accession to the rule of the Uí Chernaig sept in south Brega can not be dated with certainty.His brother Fergus mac Fogartaig( died 751) is called King of South Brega at his death obit.The annals then record the deaths of his cousin Domnall mac Áeda in 759 and his brother Finsnechta mac Fogartaig in 761 with no titles.As for his accession to all of Brega, the death of the Brega king Dúngal mac Amalgado of the rival northern Uí Chonaing sept of Cnogba( Knowth) occurred in 759.Coirpre is first mentioned in the annals with regard to the death of his son Cellach, who was killed by robbers in 767.Then Coirpre is driven into exile in 769 by Donnchad Midi( died 797) of the rival southern Ui Neill branch of Clann Cholmáin based in Mide.A battle had been fought between the men of Mide and Brega in 766.The year after Coirpre's exile the men of southern Brega were defeated at the Battle of Bolgg Bóinne in 770 and two members of the sept were slain, Cernach mac Flainn( a grandson of Fogartach) and Flaithbertach mac Flainn as well as the vassal king Uarchride mac Baeth of the Deisi Brega.This was in conjunction with a campaign of Donnchad Midi versus Leinster and may have been part of that or Donnchad may have defeated the men of southern Brega on is way home.Coirpre then reappears in the year 771 at his death obit with the title King of Brega.

Answer: Irish