Kate Middleton can trace Irish lineage back to High King Brian Boru

Kate Middleton, Duchess Catherine of Cambridge, has an ancestor in Irish hero Brian Boru

Britain’s Queen in waiting Kate Middleton is related to Irish warrior Brian Boru – and singer Chris de Burgh.

The Irish connections of the Duchess of Cambridge were unveiled in London’s House of Commons on Monday night.

Website TheJournal.ie reports that the connections were unveiled at an event attended by British Prime Minister David Cameron and his Irish counterpart Enda Kenny.

Keen to promote The Gathering, Tourism Ireland chiefs announced details of their research which traces Katie’s Irish roots all the way back to the warrior who fought the Vikings in the Battle of Clontarf.

The tourism body said that genealogists’ research shows that Prince William’s wife has connections through the Lupton family from Yorkshire with the Fitzmaurices, a noble family from Co Kerry.

The Fitzmaurices have links back to Brian Boru, the first High King of Ireland.

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The news came as Tourism Ireland rolled out an initiative inviting members of the British House of Commons and House of Lords to explore their Irish family connections.

The move comes as 2013 is named Ireland's’ Family History Tourism Ireland chief Niall Gibbons said: “The history, culture and family links between Ireland and Great Britain stretch back generations.”

Recent reports have confirmed that Middleton is also related to Irish singer Chris de Burgh and his model daughter Rosanna Davidson.

A PDF of the Duchess’s family connections to Ireland can be viewed here.