A woman wept in court as she was charged in connection with the violent death of her husband 25 years ago.
Philomena Coton was extradited from the UK and taken to Dublin District Court where she was charged with assault with intent to murder Christopher Payne and causing grievous bodily harm.
The father-of-two died in hospital six months after he was attacked at his home in Rutland Grove, Crumlin, Dublin, in 1988 by a group of men armed with a hatchet.
Three other people, including the couple's daughter Sharon Cullen, have already been charged in relation to the death of the 36-year-old.
Ms Coton's arrest follows a review of the case by gardai in Crumlin and the serious crime review team.
Detective Sergeant Daniel Kelly told the court that the 59-year-old was detained at Dublin Airport shortly after 9pm on Thursday and taken to Sundrive Garda Station.
She replied "I'm innocent" when each charge was put to her, the senior garda said.
Dressed in black coat and trousers, Ms Cotton, who was living in Stoke Aldermoor in Coventry, wept and dabbed her eyes with a tissue throughout the short hearing.
Judge Victor Black remanded her in custody to appear in court again next Wednesday when the issue of bail will be discussed.
State solicitor Vincent Maloney told the judge it was a very old case and it could be "a bit of time" before the book of evidence is ready to serve.