Princess Diana and Prince Charles, Kate Middleton and Prince WilliamWill and Kate may not be able to name the baby after Princess Diana (it's a boy, afterall!) -- but Kate paid such a sweet and subtle tribute to Will's mum today when she stepped out holding her newborn son. Just look at them. Aside from the huge smiles on their face ... what do you notice?

Don't think, for even a second, Kate's dress of choice wasn't thought about -- over and over and over again. This similarity is in no way a coincindence, and I love it! Both sporting free-flowing polka dot dresses.

More from The Stir: Prince William's Official Royal Baby Statement Is Bittersweet Without Diana Here

The images may be 31 years apart -- but the side-by-side says so much.

The Royal Family is all about tradition, and Kate's choice of dress was the perfect (and sweetest!) touch to this very exciting day. The best part? Not only did Kate and Diana wear similar dresses, they both have that unmistakeable new-mom grin!

 

Image via Chris Jackson/ Getty Images, Splash News