The Omagh Bombing Inquiry has remembered the oldest and youngest victims of the atrocity.
The Real IRA bomb attack on 15n August 1998 came on the 66th birthday of former nurse and mother-of-11 Mary Grimes.
She died alongside her daughter Avril Monaghan, who was pregnant with twin girls, and her daughter Maura Monaghan who was just 20 months old and the youngest of the 29 victims.
The inquiry was shown photographs of Ms Grimes, Ms Monaghan and little Maura - who won a "bonnie baby" competition during her short life, as well as ultrasound scan pictures of the unborn twin girls who had been named Eimear and Evelyn.
Ms Grimes's son, Fearghal Grimes, gave evidence to the inquiry.
He recalled how at the inquests into the Omagh bomb, former senior coroner John Leckey said he could not recall any one family suffering such a loss in the history of the Troubles.
He described his mother Mary as a woman with a strong Catholic faith, a strong work ethic and a "deep sense of family values and she lived these out every day".
Inquiry chairman Alan Turnbull described the multi-generational loss as something that "constitutes an incomprehensible loss" and paid tribute to their family for sharing their memories of their loved ones.
"No-one was ever turned away from her door and no-one left without a cup of tea or some of her beautiful current bread or apple tart," he said.
"A modest women all her days, our mother let her actions and her endless compassion speak for her.
"She was happiest in the kitchen surrounded by her family.
"Her tragic passing in the cruellest of ways possible, the Omagh bomb, robbed us, her family, her husband, friends and neighbours a chance to pay back the love and affection she had shown to all of her.
"A massive dignified crowd at her wake and funeral and those of her beautiful daughter Avril, her granddaughter Maura and Avril's unborn twins reflected the enormity of the loss for her family, neighbours and society," Mr Grimes said.
The inquiry, which sits at the Strule Arts Centre in the Co Tyrone town, also recalled the second youngest victim, Breda Devine, 20 months, and 16-year-old Alan Radford.
Omagh inquiry: The victims remembered
It was the second day in a planned four weeks of commemorative hearings for all victims as well as those impacted.
The first tributes were paid to Fernando Blasco Baselga, 12, and Rocio Abad Ramos, 23, two Spanish tourists killed in the bombing.
Bereaved families and survivors gathered at the Strule Arts Centre for the second day of commemorative hearings, which included evidence from Claire Hayes about her brother.
Outside the inquiry, concern was expressed as to whether the inquiry, set up to probe whether the attack could reasonably have been prevented, will be able to uncover the full truth.
Ms Hayes, sister of Alan Radford, said she is very sceptical, with the Irish Government not being a full participant in the proceedings.
She said the car used in the bombing had been stolen in the Irish Republic and driven from there to Omagh.
Speaking to media after giving evidence to the inquiry, Ms Hayes said the loss of her brother is something she relives every day.
"Today was to portray Alan as a person, and more than a statistic in our so-called Troubles, he was a person who was loved very much by all of us," she said.
"This inquiry needs to fulfil what the families need, and for that I want to call on the southern state, and for them to be compelled, not in a voluntary way, but to be compelled as a mandatory order for them to give all that they have and what they know in the knowledge that they had prior to Omagh.
"They planned it in the south, they built that bomb in the south and they destroyed our town, our lives and our family's life forever.
"I'm very sceptical, I've come into this with an open mind as much as I could have, but given the fact they haven't been compelled to take part, it has been flawed, in my opinion, from the outset.
"I don't want this to be another 10 years of battling with the Irish Government to do what they should be doing. We have fought long and hard as families. I want this to be open and completely transparent."
We need your consent to load this rte-player contentWe use rte-player to manage extra content that can set cookies on your device and collect data about your activity. Please review their details and accept them to load the content.Manage Preferences
Earlier this week, Taoiseach Micheál Martin said his Government will co-operate "fully" with the inquiry, while Tánaiste Simon Harris said they "will not be found wanting".
DUP leader Gavin Robinson raised the matter with Keir Starmer during Prime Minister's Questions in the House of Commons.
He pressed the Prime Minister to ensure that truth is delivered and justice arrives for the families of those killed.
Mr Starmer responded, describing the Omagh bomb as a "heinous and cowardly terrorist attack", which "shocked the world".
"I do welcome the Irish Government's commitment to co-operate with the inquiry, the Secretary of State for Northern Ireland has raised with the Irish Government the importance of working together on addressing these and all legacy issues," he told MPs.
Mr Turnbull said during his opening statement last year that the inquiry will undertake its task "rigorously and fearlessly", and emphasised the "defining character of the inquiry must be its independence".
The names of all those killed in the bombing were read out at the inquiry on Tuesday morning before all those assembled were invited to stand for a minute's silence in remembrance.
The commemorative and personal statement hearings will be heard over the next four weeks.
These will begin with bereaved families giving pen portrait evidence of those who died, followed by survivors, emergency services and those working in statutory organisations.
Family 'broken beyond repair' after Omagh bombing
Ms Hayes told the public inquiry today that her family was broken beyond repair by the murder of her brother.
Alan had gone into the town with his mother to open a bank account, when he was killed by a huge bomb left in a car by the dissident republican group the Real IRA.
He was described as a ray of sunshine during the second day of hearings at the public inquiry into the Omagh bombing.
Ms Hayes said her older brother had been like her other half. who had a heart of gold and did not have a bad bone in his body.
The inquiry was told his death had devastated his family.
His sister said there were no words for the immense grief she feels.
She said the family had been "broken beyond repair", and that those responsible for his murder must be held to account.
