10. Christy Walton ($5.5 billion)
Christy Walton is the owner of Wal-Mart. You must have heard about this company before. It is the largest retailer, not just in United States but also in the whole world.
The Waltons is definitely one of the richest families in the world. So why is Christy Walton only the 10th richest widow?
Her late husband, John Walton, passed away in 2005. Previously sealed documents revealed that half of his wealth went to charitable trusts. Christy was left with just one-sixth of it.
The 67-years-old widow is now living a quiet life in Jackson, Wyoming. She owns a total of $5.5 billion net worth. This put her as the 258th billionaire in the world and the 87th in United States.
