Alyssa Milano, Jane Fonda, Lily Tomlin and Lisa Ann Walter pose for a photo at the Era Coalition Forward Women's Equality Trailblazer Awards and premiere of 'Still Working 9 to 5'. Amy Sussman/Getty ...

Though Charles grew up with three older siblings — Lady Sarah McCorquodale, Lady Jane Fellowes and the future people’s princess — he was closest with Diana, who was three years his senior.