Happy 29th birthday, Prince William . . . he's Just Like Us!

Though he was born into royalty on June 21, 1982, the young Brit's mother, Princess Diana, took great strides to ensure the future King of England didn't grow up to be a spoiled brat.

"At night she'd take her sons to the streets, show them the homeless and explain real life," Lana Marks, a friend of the late princess, once told Us Weekly.

Now 29, William and bride Kate Middleton have been enjoying wedded bliss since their instantly iconic wedding at Westminster Abbey on April 29.

"I would love to have met her," Duchess Catherine, 29, once said of Princess Diana. "She was an inspirational woman."