HE might have become pop royalty, but singer Nicky Byrne's family come from an altogether more humble background.
The former Westlife star has traced his roots back to labourers, porters and dock workers.
He was guided through his family history by genealogist Nicola Morris, who has worked on the hit TV series 'Who Do You Think You Are?' and 'The Genealogy Roadshow', and historian Turtle Bunbury.
Nicky's father-in-law, Bertie Ahern, was at the History Festival of Ireland in Duckett's Grove, Co Carlow, to hear the details.
"Nicky's great-great-grandfather, Charles Callahan, died in 1908 at the age of the 30," said Ms Morris. "He was a labourer on the docks and was killed when he was hit by a plank.
"The family lived in tenements in Dublin. We were talking about the struggle that his wife, Teresa Swords, would have gone through. Both her parents were deceased and she eventually remarried."
On the Byrne side of the family, Ms Morris said there were more than 10,000 people in Dublin with the family name in the 1911 Census.
However, she managed to trace his history back to a family in Co Laois.
"I think he was delighted – we helped them to fill in some of the blanks in the story," she said.