Rupert Murdoch’s family has reached a deal that guarantees eldest son Lachlan will retain control of his father’s media empire after the elderly patriarch’s death. > >James, Elisabeth and Prudence will each receive more than $US1 billion ($1.52 billion) for their shares in the companies, The New York Times reported, citing an anonymous source with knowledge of the negotiations. > >Fox said the three siblings would also be prevented from ever buying back into the companies.