A brother of Sinn Fein leader Gerry Adams allegedly confessed to sexually abusing his eldest daughter, the trial against him has heard.
Sinead Rossbotham, 33, his second daughter, claimed that Liam Adams made the admission during a meeting at her aunt's Twinbrook home in 2002.
"I asked him, did he abuse her, and he replied, 'yeah that happened'," Belfast Crown Court was told.
Adams, 57, from Bernagh Drive in west Belfast, denies 10 counts of sex abuse including rape, indecent assault and gross indecency against his daughter Aine Adams - who has waived her right to anonymity - between 1977 and 1983.
Giving evidence from the witness box of courtroom number 14, Mrs Rossbotham told the jury of six men and six women that her father had never been part of her life.
They established contact in 2002 and during their first encounter Mrs Rossbotham raised the issue of the alleged abuse against her sister.
"He was horrified, shocked that I was asking this question," she said.
She claimed her father said it was an issue for him and Aine to discuss. "We'll settle our own demons in time," she alleged her father said.
Earlier, the court heard evidence from Sarah Campbell, 57, who was married to Adams at the time of the alleged abuse. She recalled travelling to Buncrana, Co Donegal, to confront her ex-husband, accompanied by Sinn Fein president and former West Belfast MP Gerry Adams as well as Aine.
At the house, she claimed to have overheard a heated conversation between the two brothers in which Gerry Adams threatened violence. The trial continues.