Of Rupert's six children, the oldest four have been implicated in the legal turmoil over the company's future. His younger children from his marriage to Wendi Deng Murdoch, Chloe and Grace, are also named as beneficiaries in the new family trust.
Lachlan has been running the media empire since Rupert stepped back in September 2023 though Murdoch senior has remained as chairman emeritus of both Fox Corporation and News Corp.
Prof Ricketson said that James, Elisabeth and Prudence, in particular James, have "been opposed to the way in which News Corporation and Fox Corporation have been going about their work".
He said that James has disagreed with reporting on climate change and on the 2020 US election "which Donald Trump said he hadn't lost but everybody else said and knew that he had lost it".
"Fox News gave him an enormous platform," to promote that theory, Prof Ricketson said. "That was something that James disagreed with."
The battle over control of the media empire played out largely behind closed doors in Nevada, a state that offers unusual privacy for family trust disputes, after Rupert took the surprising step of attempting to alter the terms of the family's trust.
He wanted to ensure his empire would fall solely into Lachlan's hands rather than to all four of the oldest children, but in December last year a Reno court rejected that bid saying Rupert and Lachlan had acted in "bad faith" in trying to amend the trust.
Monday's deal was a "mutual resolution of the legal proceedings", according to the companies.