Mrs Osbourne, who describes herself as "49 per cent Irish and the rest is Ashkenazi Jewish" also described what happened to her father, the music manager Don Arden, experienced during the Second World War from fellow British soldiers.
Before changing his name in 1944, he was called Harry Levy.
“His name was Levy so of course they knew he was a Jew”, she said.
“There he was fighting for his country and everybody was torturing him. People from his own country were torturing him.
“They’d wake him up at two or three in the morning and it’s p***ing down with rain and they’re getting him to dig a hole outside.
"He’s like, ‘Why am I doing this?’ And they’re going, ‘Because you’re a f*****g Jew and this war is over you and this is why we have to fight and you’re going to dig a f*****g hole’. And he just went, ‘They’re going to kill me’.”
Her episode of Who Do You Think You Are? focuses more on her mother, because the show's researchers were unable to find records of her father's Eastern European heritage, everything having been “destroyed” during the war.