Brian Boru was born around 936, the youngest son of Cennedig, (Kennedy). He was a prince of the Dal Cáis (Dalcassian)dynasty of Thomond. His great grandfather had been King of Munster in Cashel. Brian lived in what we now know as County Clare.
The Vikings or Norsemen from Limerick constantly attacked the kingdom of Munster where Brian lived with his family. The Norsemen came to steal women and children, to sell as slaves and they took cattle, gold and jewellery as well. The Norsemen would kill any one who tried to fight against them and destroyed their homes and land. When Brian was a child his mother Bébhinn, was killed by Viking raiders who attacked their home. These Norsemen came up the Shannon from Limerick and were led by Ivar. Brian learned to hate and detest the terrible violence of the Norsemen.
Brian was sent to school in the monastery of Clonmacnoise. Brian met students from all over Europe. There he studied history, Latin, Greek, religion and music. By all accounts he was an excellent harp player. Brian learned about the great leaders of history like Julius Caesar, Charlemagne and Alfred the Great. Brian was fascinated with Ancient Irish history and the time before the Norsemen came to Ireland.
Brian’s older brother Mahon became the Taoiseach of the clan when their father was killed in battle by a neighbouring clan. Mahon made a truce with the leader of the Norsemen, Ivar of Limerick, to keep the peace. Brian turned against his brother and refused to support him. Brian gathered a small well trained force and began to attack the Norsemen from the hills and mountains around his home in the kingdom of Thomond. Brian and this small band of brave young warriors started fighting like the Norsemen using axes and both hands. Brian learned how to make really fast boats like the Norsemen used and he was able to attack the Norsemen on the Shannon.
With Brian’s help, Mahon took the throne of Cashel in 959. Mahon was now King of Munster. In 968 at Sulchoit (county Tipperary) the two brothers completely overtook Ivar’s forces and defeated them. Brian then marched on Limerick and destroyed it. Ivar fled back to the Norse lands. Ivar later returned and built a settlement on Scattery Island in the Shannon Estuary. The Norse tyranny in Munster collapsed and Mahon ruled peacefully for eight years with Brian‘s help and advice. Brian preferred to live with his family in Béal Boru in the fort built by his father. Brian was called Brian Boru, after his home.
Mahon was killed by two Irish chieftains who were jealous of Mahon’s power and wanted to trade again with the Norsemen of Limerick. Brian had a terrible battle against Mahon’s killers and became King of Munster. Brian realised that he could not rid Ireland of the Norsemen, they were now a part of the country but he realised that if all the men of Ireland worked together it would be a better place for everyone.
The flag or standard of Brian Boru. Not everyone was happy to see how powerful Brian Boru was becoming. Some chieftains in the south east joined with the Norsemen of Waterford and the king of Leinster to form an army to defeat Brian Boru. They were defeated by Brian and his excellent army. Brian made each defeated chieftain pay tributes to him every year. Brian used this wealth to rebuild forts and monasteries all over Munster.
The king of Dublin was a Norseman called Sitric Silkenbeard. His mother was Gormlaith, a princess of Leinster and his father was Olaf Cuaran. When Olaf died Gormlaith married Malachy, High King of Ireland. Even though Gormlaith was very beautiful and clever she was not easy to live with and Malachy divorced her after a few years. Sitric was not happy with the power of Brian Boru and joined with his uncle Maelmorda of Leinster to destroy Brian Boru. There was a terrible battle in Glen Mama (County Wicklow). Brian was victorious. Brian made peace with Sitric and Maelmorda. Brian’s daughter Eimear married Sitric and Brian married Gormlaith
In 1002 Brian led a huge army up into Tara the seat of the High King of Ireland, Malachy. Brian did not go into battle against Malachy. Malachy surrendered the High Kingship to Brian. It seems he was terrified by the size of Brian Boru’s army. There were 10 peaceful years in Ireland after that as Brian brought most of Ireland under his control ruling firmly but fairly, treating all the people of Ireland equally. However Gormlaith wanted more power and grew jealous of her husband. Gormlaith wanted her son, Donncha to be Brian’s heir, not his oldest son Murcha. Brian got tired of the constant rows at home and he sent Gormlaith back to her son, Sitric, in Dublin. Meanwhile Maelmorda, Gormlaith’s brother was not happy either and began plotting against Brian with Sitric and Gormlaith.
In 1013 a prince of Ulster, Maelmorda of Leinster and Sitric attacked Malachy of Meath. Brian’s army went to help Malachy. Brian’s army chased them as far as Dublin but had to abandon the siege due to the winter. The battle was due to resume in the spring of In the meantime Sitric went to enlist the help of other Norsemen in Orkney, the Isle of Man and as far away as Denmark. Sitric promised them all plenty of plunder in Ireland. Neither Sitric nor Maelmorda would stop them from plundering or get in their way. These Norsemen had heard of the great wealth of Brian Boru and were greedy to get their hands on it.
Brian had an army made up of his own loyal Munster men but he also had the support of the Norsemen from Waterford Wexford Cork and Limerick. This was not a battle of Irish men against Norsemen but the men of Ireland fighting to stop the tyranny of outsiders taking over the country of Ireland again. Most of the people of Ireland had enjoyed the peace and prosperity of Brian’s reign. By now Brain Boru was in his seventies and too old to fight so he stayed in his tent and prayed for victory. His army was led by his son Murcha and his grandson Turlough. Brian had other sons fighting for him as well. Thousands of Vikings landed on the coast of Dublin in Clontarf ready to defeat the Irish king Brian Boru and plunder his lands
The fighting was terrible but Brian’s army steadily won the battle, driving the Vikings back into the sea. Many of them were drowned in the incoming tide. Sitric watched the battle from inside the city wall with his wife and mother. Brian’s son Murcha and his grandson Turlough were killed in the battle. As the Norsemen were being defeated, a Viking from The Isle of Man, Brodir, ran away and came upon an old man praying in his tent. Brodir recognised Brain Boru and killed him. Legend tells us that Brian Boru killed Brodir also while defending himself. Good Friday 23 rd April 1014
Brian Boru was buried in Armagh. There is a plaque on the north wall of Saint Patrick’s Cathedral that marks the grave. Brain Boru was the last High King of Ireland. The Norsemen settled down to live peacefully in Ireland and the raiding stopped. The O’Brien family are descendants of Brian Boru. 1000 years after his death Brian Boru remains a great Irish hero. There is a beautiful piece of music, made famous by The Chieftains called Brain Boru’s March.