13 fascinating facts you didn't know about the royal family

Earlier this week, Prince Charles: The Passions and Paradoxes of an Improbable Life was released. Written by Sally Bedell Smith, the extensive biography gives an in-depth look at the life—and family—of Britain's heir apparent.

We read the book, which contains more than a few fascinating facts about Queen Elizabeth II and her relatives. Below, the 13 most interesting things we learned:

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