Martin, from Woodford Green, east London, was described in court as a “doting and loving grandmother”.
She was 5ft 3in (1.6m) tall and had restricted movement due to a hip replacement, arthritis and a limp.
Leaving her in charge of the two XL bully dogs, and eight puppies, was a “tragedy waiting to happen”, prosecutor Christopher Paxton KC said.
She had mobility issues and “little to no experience” of being left alone with them for a prolonged period of time, Mr Paxton said.
He told jurors: “It was, you may think, a tragedy waiting to happen, given the imbalance that arose between 68-year-old Esther, short in stature, and the towering power of these banned XL bully dogs.”
Paxton said it was a “ludicrous suggestion” to say she could be considered a “fit and proper person” to control the dogs.
She was attacked within hours of arriving in Jaywick, where Warren had asked her to watch his dogs while he was in London shooting the video.
“Esther suffered dozens and dozens of dog bite marks and wounds, which led to a catastrophic bleed and her death,” said Paxton, when opening the trial.
Warren had been in a relationship with Martin’s daughter Clare for 14 years before she died suddenly in 2021.
He would have been aware of Martin’s mobility issues and had “no basis” to believe she could “physically stop the dogs”, Paxton said.
