City Diary: Campaigns are family currency for banknote protester Caroline Criado-Perez Unilever talks shop with the Royals Is Unilever involved with the Prince of Wales" new range of organic baby potions, as launched this month through HRH's Highgrove estate? Diary only asks because Paul Polman, the global boss of the soap to Slim-Fast consumer goods empire, had a private audience with Prince Charles at Clarence House last Friday morning. A product partnership between the FTSE 100 giant and the Royal eco-entrepreneur would no doubt fly off the shelves. But, alas, details of those business dealings remain confidential. Both Clarence House and Unilever tell me the conference was "closed." Snap unhappy Schmidt Google boss Eric Schmidt once told CNBC: "If you have something that you don't want anyone to know, maybe you shouldn't be doing it." It seems he may not have taken his own good advice. Just days after allegations emerged that the internet billionaire enjoys an open marriage, the Silicon Valley blog Valleywag has revealed that a number of the women Schmidt followed on his Instagram account were dressed - how shall we say it? - for the beach. Not that Instagram users would know it now. When Schmidt's photo gallery became public, the privacy-loving Google chief shut it down. Keenan's contrasting radio output How consolidation works. Exhibit one. Paul Keenan, the boss of Bauer Radio, ahead of rival Global Radio's acquisition of Guardian Media Group's radio stations last June. "Were this merger to proceed, it would produce a radio owner with excessive control and result in a significant reduction in music, sport and news," said Keenan as he called for Ofcom to block the deal. Exhibit two. Paul Keenan forgetting all about those media plurality issues as he announced Bauer's around £22m acquisition of Absolute Radio yesterday. Absolute Radio and its sister brands are loved by millions of UK consumers and by advertisers. This acquisition will be an opportunity to learn and share across both businesses. Bob Diamond tees up family trust Bob Diamond continues his charitable efforts in his downtime before launching his Africa-focused merchant bank. The former Barclays chief has strengthened the Diamond dynasty's philanthropy fund, the Diamond Family Foundation, by appointing his youngest child, Charlie, as a director. Charlie, 23, who joins siblings Nell and Robert Diamond Jnr on the board, is already doing good works - for golfers, at least. He works as an "outreach program administrator" on the 2013 PGA Tour. Can Charlie get his old man a discount at The Barclays, the PGA tournament stage sponsored by his Dad's old employer, when it tees off in Jersey City next month? Ad-man David Jones has the hump. After squealing in protest about the merger of his rivals Omnicom and Publicis by claiming "pigs might fly," the chief of the global media group Havas has moved on to camels. Mating camels, in fact, as used on the cover of The Economist in 1994 to illustrate a story on "the trouble with mergers." "So pigs do fly and camels are still very relevant," Jones updated yesterday. Will the conflicting clients of the combined Publicis Omnicom Groupe take their heads out of the sand?