Gwendolyn Sontheim Meyer (born 1961/62) is an American billionaire heiress and equestrian.[2][3]
She is a great-great-granddaughter of William Wallace Cargill, the founder of Cargill.[1] Her late mother was Marion MacMillan Pictet.[1][4]
A show jumper, she won the Prix Credit Suisse at the Geneva International Horse Show in 2011.[3] She also sponsors dressage.[5][6]
She lives in Rancho Santa Fe, California.[1][2][5][7] She is divorced, and has two children.[1] As of May 2022, she was estimated to be worth approximately US$5.5 billion.[1][2]
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