The world's richest woman in 2011 was Alice Walton of the United States, with a net worth of $21.2 billion. Walton, with a net worth of $21.2 billion, is ranked 21st on the Forbes list of the world's richest people. Alice Walton is the founder of Walmart, Sam Walton. Walton is the eldest daughter of Sam Walton, the founder of Wal-Mart.

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