Odessa Carey allegedly killed her mother, removed her head and carried it around in a plastic bag, Newcastle Crown Court heard.
According to Chronicle Live, her mother, Odessa Carey snr, died as a result of severe head injuries in April 2019.
The 73-year-old's body was found in her bed, wearing a top featuring Olaf from Frozen, and her head was missing.
Jurors at the court heard Carey carried the head around in a bag before hiding it under a sink at a friend's house.
Carey, 36, is not well enough to be tried for murder and the jury is only being asked to decide whether she actually killed her mother in what is known as a trial of the facts.
Prosecutor Nicholas Lumley QC told the court: "On April 8 2019, officers from Northumbria Police went to Links View, Ashington. That was the home of Odessa Carey senior, the mother of this defendant.
“On the bed, in her own home, lay Odessa Carey’s body. Or most of it. Her head was missing.
“And her abdomen - her tummy - had been cut open.
“In the bath, in a plastic container, there was blood and brain tissue. And some implements: a large pair of scissors, knives and a mallet.”
Police went to a her friend's home, where Carey had been staying, occasionally.
Mr Lumley said: “This defendant, Odessa Tammy Carey, was hiding in the loft,
“In the pocket of a top she had been wearing were the keys to her mother’s house and the key for her mother’s mobility scooter.
“In a cupboard under the sink, the police found a human head, in a pillowcase, in a towel, inside a carrier bag.”
'Odessa Carey kissed her mother’s forehead, before re-wrapping the head in its shroud'
Prosecutors say Mrs Carey was dead by April 6 or April 7, when allotment owner John Murray saw Carey covered in blood.
Mr Lumley said: “He had been out to the pub and came back to his shed to find Odessa Carey there.
“She was sitting in his shed, wiping blood from her hands and arms with a baby wipe.
“She had her bag with her. She spoke to John Murray and from the bag, she carefully took a parcel, of sorts, the contents wrapped in a pillowcase and a towel, from which she produced a human head.
"Beyond seeing that it was the head of a white woman, John Murray did not dwell on the contents.
“Odessa Carey spoke and kissed her mother’s forehead, before carefully re-wrapping the head in its shroud.”
After visiting the allotments, Carey is said to have made her way across town, visiting her aunt and uncle before going to the home of John Angus who had been her father's friend, and let her stay there at times.
The next morning, Mr Murray told someone what he had witnessed and police were contacted and found Mrs Carey's headless body at her home.
'Her brain was removed from the skull'
Her mother was described as a "frail" woman, with arthritis, who used sticks and a mobility scooter.
Mr Lumley told jurors: “Examination of her body, her head and her brain, showed that she had been badly beaten.
“She suffered head injuries from which she died.
“And once she had been killed, then her body was further violated in the way described: her head removed from her body; her brain removed from the skull and her abdomen cut open.”
Mr Lumley concluded: “There is no doubt, therefore, that the head and the body were those of Odessa Carey snr.
“And, whilst there is no eye-witness evidence to this direct effect, the cumulative circumstantial evidence points to Odessa Carey, and to no other person, as having killed her mother, having then removed her head, taken the head with her in a bag, locking the house behind her, then hiding the head at the home of John Angus.”
The trial continues.
