Birthdays are supposed to be a happy time, however, if you're someone with family drama, you know that's not always the case. It's also not easy to enjoy your birthday when you're one of the most famous people in the world, and your in-laws are literally royalty. No matter what Prince William and Kate Middleton do, it seems it's never enough for fans.
Now, the pair's birthday post for the Duchess is sparking backlash.