RENO, Nev. — A probate court in Nevada began reviewing evidence Monday in a case that could determine the future control of Rupert Murdoch’s media empire.

Last year, Murdoch, 93, moved to change the terms of his irrevocable family trust in a bid to ensure that his eldest son, Lachlan, remains in charge of his cadre of newspapers and television networks, including The Wall Street Journal and Fox News Channel, according to reporting by The New York Times based on a sealed court document.

Evidentiary hearings in the case that are closed to the public are scheduled to run through Tuesday of next week. The trust was originally set up to give equal control over Rupert Murdoch’s businesses to his four oldest children upon his death, according to the Times. — Associated Press