Lisa Armstrong has been left heartbroken following her dad's death after a lengthy cancer battle.
Ant McPartlin's ex had been at her dad Derek's, 71, bedside at her family home when he died.
The make-up artist, 42, ensured that news of his illness stayed a secret while dealing with her very public divorce from husband and BGT star Ant.
Currently the pair are embroiled in a dispute over his £62million fortune.
Lisa is reportedly "distraught" over the news of her dad's death.
A source told The Sun: "There’s been one thing after another and at times she’s felt on her knees. But she’s kept it together and ploughed on.
To do all of that whilst knowing your dad is seriously ill and on borrowed time is quite something. It would break most people.”
The publication claims that her father Derek is believed to have been diagnosed a year ago but that his condition has deteriorated over the last few months.
A source added that he had been discharged from hospital to die at home.
Lisa has faced a difficult year after the breakdown of her marriage and losing her job as a make-up artist on BGT after it was confirmed Ant was returning following his hiatus.
The shamed I'm A Celeb star caused a three-car smash in west London last March, which left a four-year-old girl needing hospital treatment.
Since then he's remained teetotal and has credited his new girlfriend Anne-Marie Corbett with helping him kick his demons for once and for all.
The Mirror Online has reached out to Lisa's reps for comment.
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