Michael Peluso, who is fighting the widower with his brother Robbie over the actress’ will, said he meant “nothing” to the family.
The siblings claim they will get “less than £50,000 each” from the late Loose Women star’s estimated £5 million estate after Pattemore spent it - accusations he has vehemently denied.
Addressing Bellingham’s spouse, who she wed in 2008, the 34-year-old stated: “Nothing you say or do will ever compare to the love my family had. You can’t take that away from us.”
Peluso continued: “You never came close. Just a pretender. Someone to fill the gap. Someone to pass the time with.
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Soon you will be forgotten, but our family bond goes on for an eternity
“You are lonely. We are love and beauty and dignity. You are nothing. Family is blood, family is forever. You are but a whisper in the wind. A distant memory.”
He went on: “Soon you will be forgotten, but our family bond goes on for an eternity. When all is said and done you won’t be spoken of. No one will remember you,” the Daily Mirror reported.
Pattemore previously said that her boys had received a £750,000 flat, but they said because of conditions attached to it and after paying their legal bill, they will walk away with less than £50,000 each after sale.
Michael Pattemore breaks down over Lynda Bellingham
He stated: “It annoys me that they’re still referred to as boys. They aren’t boys. They’re men. They’re perfectly capable of earning a living.
“Where were the boys in Lynda’s final hours? With him [their dad, her second husband Nunzio Peluso]. They should have been with their dying mother around the bed, the three of us.”
It comes after it was revealed that he had found love again two years after Bellingham’s shock death following a colorectal cancer diagnosis.