Rupert Murdoch has lost a legal fight to change his family's trust, which would have let his son Lachlan take control the family's media empire after Murdoch's death.

Rupert Murdoch has lost a bid to change his family trust to consolidate control of his media empire in the hands of his son Lachlan, the New York Times reported on Monday, citing a sealed court document.

A Nevada probate commissioner has ruled against Rupert Murdoch’s attempt to alter his inviolable family trust to give his oldest son Lachlan Murdoch control of his media empire, in an effort to preserve Fox News’ conservative slant.