Arguments in a trial over Rupert Murdoch’s effort to change his family trust and hand sole control of his media empire to his eldest son concluded Monday, according to a person familiar with the matter.

A hearing to determine control of Rupert Murdoch’s global television and publishing empire concluded Monday in a Reno, Nevada, courtroom, though the outcome remained unclear. Murdoch, 93, is attempting to change the terms of the family’s trust -- which holds significant stakes in Fox News parent Fox and Wall Street Journal owner News Corp.

A probate court in Nevada is set to begin reviewing evidence this week in a behind-closed-doors dispute that could determine who will control Rupert Murdoch’s media empire after his death.

Upon Murdoch's death, control of the trust was to be split among his four oldest kids. Instead, he has sought to give voting power to his eldest son, Lachlan