The Leveson inquiry returns: this week's witnesses

Appearing on Monday The Barclays Estimated global net worth (Forbes): $3.2bn Appearing: Aidan Barclay, son of Sir David Barclay, who – with brother Sir Fred Barclay – owns the Telegraph Media Group. Aidan manages the brothers' UK businesses, which as well as the Telegraph Media Group – owned by Press Acquisitions Ltd – also include the Ritz hotel and casino, Claridge's, and the Shop Direct group, which includes Littlewoods.com. The Lebedevs Estimated global net worth of Alexander Lebedev (Forbes): $1.1bn Appearing: Evgeny Lebedev, son of Alexander, who manages UK media operations of Lebedev Holdings Ltd – which owns the Evening Standard, and Independent Print Ltd, owners of the Independent and Independent on Sunday. Evgeny Lebedev's business interests in the UK include London's Sake no Hana restaurant. Alexander Lebedev owns a stake in the Russian newspaper Novaya Gazeta, and stakes in Russia's National Reserve Bank (NRB), Aeroflot airline, Gazprom, and a number of other firms in Russia, Switzerland and Ukraine. Tuesday-Thursday The Murdochs Estimated global net worth of Rupert Murdoch (Forbes): $8.3bn Appearing: James Murdoch, (Tuesday), Rupert Murdoch (Wednesday and Thursday). News Corp owns the Times, Sunday Times, Sun and Sun on Sunday. News Corp's businesses include News International, Sky, a stake in BSkyB, and HarperCollins. News Corp also owns Fox network and news, Twentieth Century Fox, Dow Jones, the New York Post, the Wall Street Journal, National Geographic Channel, and a stake in Indian TV's Tata Sky.