Taylor Swift's three-times great grandparents hail from Ireland, new genealogical research has found.
The research from EPIC the Irish Emigration Museum has discovered the US singer has Irish heritage on both sides of her family.
On Saturday June 11th in 1836, Susan Davis and Francis Gwynn got on a boat and sailed from Ireland to Philadelphia.
Davis was a 21-year-old dressmaker and Gwynn was a 21-year-old weaver.
It's unclear if Susan and Francis left Ireland together and went their separate ways, or if they stayed in touch.
But three years later the pair were married in the US.
The couple had a total of six children, though sadly five of those children predeceased their parents.
They were survived by their daughter Mary Gwynn, who is Taylor Swift's great-great-grandmother.
EPIC's Head of the Irish Family History Centre Fiona O'Mahony told Moncrieff more about their two-month voyage across the Atlantic.
"They travelled with a group of friend's cousins," she said.
"We know this because their luggage allowance was put together with a group of - in her case - five people and in his case four people.
"They met on the boat - so if you can imagine two 21-year-olds heading off on their J1 visas with a sense of excitement about what the future may hold."
Taylor Swift performs during her Eras Tour in Florida, 13-4-23. Image: ZUMA Press Inc / AlamyMs O'Mahony said Ms Swift's relatives did quite well for themselves.
"They settled in Philadelphia, they got married and they had six children," she said.
"We know that he ended up making soap, he's a manufacturer in the 1850 Census.
"He became quite wealthy because we know in one of the the censuses that he has property worth $18,000.
"Two of the sons - one became a doctor, one became a lawyer - so they were already in a good place."
Donegal or Derry
Ms O'Mahony said Taylor Swift's great-great grandmother Mary married a man called Douglas.
"Our starting point was actually Mary Gwynn, who marries Douglas, and then from there we went back and we were able to get information on Francis and Susan," she said.
"They're probably from either Derry or from Donegal - they got on the boat in Derry.
"They're Church of Ireland but there's no church records for that time.
"So we're unable to pin down the exact point but we do know that they're from that area".
Dublin roots
Ms O'Mahony said Taylor Swift's Irish heritage doesn't stop there, as it is on the other side of the family in her great-great-grandfather.
"George Finlay is born in 1847 in Harold's Cross in Dublin and he ends up joining the Royal Navy in 1866," she said.
"He ends up as the paymaster general for the Royal Navy.
"He travels to South Africa where he meets a young widow, they come back to England and have a son who's born in Southampton also called George.
"George Finlay who went into the navy is a clark in the courts.
"They go from Phibsborough to Harold’s Cross and then he ends up dying in Sandycove - and the house is still there," she added.
The marriage certificate of Taylor Swift's great-great-grandparents George Finlay and Louisa Anna Dowling in 1800. Source: EPICHis son George Finlay also ended up emigrating to the United States.
Swift will be coming home as part of her Eras Tour with three sold out dates at Dublin's Aviva Stadium.
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