On Good Friday, April 23, 1014, thousands of warriors met on the shoreline north of Dublin in one of the most famous battles in Irish history: the Battle of Clontarf.

On one side stood Brian Boru, High King of Ireland, supported by forces from Munster, Connacht and other allies. Against him stood Máel Mórda of Leinster, the Norse of Dublin, and overseas warriors from Orkney and the Isle of Man.

By the end of the day, Brian’s army had won.

But Brian Boru was dead.

For centuries, Clontarf was remembered as the great battle in which the Irish defeated the Vikings and liberated Ireland. The real history is far more complicated.

Irish kings fought on both sides. Norse warriors fought on both sides. Dublin was already deeply connected to Irish politics, trade and royal families. At its heart, Clontarf was not simply Ireland against the Vikings—it was a brutal struggle over who would dominate Ireland.

This documentary follows the rise of Brian Boru from the Dál gCais of Munster, his wars against Limerick and rival Irish kings, his conquest of political supremacy, the rebellion of Leinster and Dublin, Sitric Silkbeard’s search for Norse allies, the arrival of Sigurd of Orkney, and the final clash at Clontarf.

We also examine the evidence behind the legend: the Irish annals, Cogad Gáedel re Gallaib, Njáls saga, the raven banner, the tidal retreat at Dublin Bay, and the conflicting accounts of Brian Boru’s death.

Was Clontarf really Ireland’s war of liberation against the Vikings?

Or was it an Irish civil war transformed by Norse alliances?

Battleward Archive explores the battles, commanders, weapons, strategy, politics and primary sources behind the conflicts that changed history.

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