Robert Kraft, Sheryl Sandberg spotted at Sun Valley’s ‘billionaire summer camp’

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Robert Kraft played tennis with his younger, glamorous fiancée, and Meta's outgoing operating chief Sheryl Sandberg

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Arrived at the annual "summer camp for billionaires" in posh Idaho resorts with her own fiance

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It was Wednesday that Kraft, 80, was photographed next to his fiance Dana Blumberg, 47, a New York-based ophthalmologist

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Since March, the couple has been engaged

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Myra Hiatt Kraft, the wife of Kraft's billionaire business partner who bought the Patriots, lost her battle with cancer in 2011

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During the three decades that Kraft owned the team, he dated actor Ricki Noel Lander for six years before they ended their relationship in 2018

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Mark Zuckerberg's No. 2 had been pictured strolling with marketing executive Tom Bernthal

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Last month, the author of "Lean In" stepped down as chief operating officer of Facebook's parent company

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