A 35-year-old man has been told he must spend at least 22 years in prison for the murder of his five-year-old stepdaughter in Co Antrim in 2019.
His wife - the child's mother - was sentenced to 11 years for causing or allowing the death of her daughter.
She will serve half of the term in prison and the other half on licence when released.
Nadia Zofia Kalinowska was pronounced dead at the Royal Victoria Hospital for Sick Children in Belfast in the early hours of 15 December 2019.
As well as suffering a skull fracture and lacerated liver that caused her death, she also sustained fractures and refractures to her ribs, a fractured collarbone, a fractured pelvis and an injury to her bowel.
There were also 70 surface injuries on her body, including bruising and abrasions.
Her stepfather, Pakistani national Abdul Wahab, and 29-year-old mother Aleksandra Wahab, originally from Poland, went on trial at Belfast Crown Court in January charged with her murder and a series of other offences.
But the trial was halted when they entered guilty pleas in connection with her death.
Abdul Wahab confessed to torturing and murdering his stepdaughter at the family home on Fernagh Drive in Newtownabbey.
He also admitted causing the child grievous bodily harm with intent in an attack 24 hours before she died, as well as carrying out a campaign of assaults against her on dates between 1 July and 14 December 2019.
Aleksandra Wahab pleaded guilty to an 'alternative' charge to murder - namely causing or allowing the death of her daughter.
She also admitted a charge of causing or allowing a child to suffer serious physical harm the day before Nadia's death, and of allowing her to suffer during the period from 1 July to 14 December 2019.
During the opening of their trial, a prosecution lawyer said the young girl had been tortured and killed in her home, a place where she should have felt safe.
In a statement after the sentence, Nadia's family said she was just "a child … who had her young and innocent life cruelly taken away.
"Our little one was loved and treasured by her family here in Poland.
"We have supported the police investigation over the last traumatic three-and-a-half years, and are truly grateful to everyone for their support.
"We're still, however, trying to come to terms with what happened to Nadia. And I’m not sure that we ever will. To be honest, our worlds have been shattered.
"Nadia will always remain in the heart of her loving grandmother and her closest family in Poland."
A detective has described the murder of Nadia by her stepfather as the "ultimate betrayal of trust".
Speaking after the sentencing at Belfast Crown Court, Detective Inspector Gina Quinn said Nadia's extended family in Poland had suffered "unimaginable heartache and pain".
The detective said: "Nadia, who was a young and innocent child, had been subjected to a campaign of violence by her stepfather, while her mother ignored the very obvious attacks being carried out on her young daughter.
"They failed to ever seek medical treatment for any of her injuries.
"This was the ultimate betrayal of trust by the two people who should have protected, loved and cared for Nadia."
Detective Inspector Quinn added: "My thoughts today are with Nadia's grandmother and extended family in Poland, who have suffered unimaginable heartache and pain.
"The whole community, including teachers and staff at Nadia's school, have been left shaken by this truly distressing case.
"Nadia was a much-loved pupil at St James' Primary School in Newtownabbey. This was her safe space; and I'm grateful to the school for their support throughout this investigation.
"Nadia's mother and stepfather denied her the future she deserved and while today's result will not bring her back, I hope it can bring some comfort to her remaining family in Poland."
