Shocking resemblance between Kate Middleton and Princess Diana is too sweet

Just a few hours after Duchess Kate gave birth to her third child -- a second prince! -- she and Prince William stepped out on the steps of the Lindo Wing to present the new baby to the world.

The Duchess looked beautiful in a red Jenny Packham dress with a white collar while holding her newborn. And while the choice of her dress is making headlines of its own, one side-by-side photo is seriously pulling at our heart strings.

The photo shows the uncanny resemblance between Duchess Kate and Princess Diana after the births of each of their second sons. Right down to the white collars on their red dresses and cream colored baby blankets, our hearts are melting for this sweet family moment.

While we are eagerly awaiting the announcement of the new prince's name, we are wishing the new party of five happiness and a big happy birthday to the new prince.

See all of the picture from the big day!