On July 23, the world watched the Duke and Duchess of Cambridge holding Baby Cambridge as they left St. Mary's Hospital. Kate Middleton wore a Jenny Packham dress that was so much more than just a polka dot frock.

Catherine, Duchess of Cambridge wore a custom creation from British designer Jenny Packham. She and Prince William matched their, "it's a boy" announcement with blue outfits. With her polka dot dress, Kate Middleton gave Princess Diana a touching tribute. The Princess also wore a dotted dress as she and Prince Charles showed off Prince William in 1982.

The Duchess of Cambridge's Jenny Packham dress had an empire waist and an above-the-knee hemline. White wedges from Pied a Terre added to her outfit's summery, casual feel. Kate Middleton's hair was styled simply, thanks to a visit from her hairdresser Amanda Cook Tucker.

Kate Middleton has acquired quite a collection of Jenny Packham dresses. The royal often returns to the designer's body-skimming cuts and resplendent evening wear. Here are some of the Duchess' best outfits from the British designer.

A little over a month before the Royal Baby was born, Kate Middleton wore an empire-waist Jenny Packham dress in a similar style as her blue polka dot dress for July 23. Kate's soft pink, lace dress and coat was a lovely look for the 60th anniversary of the Queen's Coronation.

During the Duke and Duchess of Cambridge's visit to Singapore in 2012, Catherine wore two Jenny Packham dresses with much success! The Duchess stayed cool in a pale grey shirt dress with lace details on the bodice and a demure pleated skirt.

The Duchess of Cambridge Wears Jenny Packham by ttinar featuring special occasion dresses

Kate Middleton's best Jenny Packham outfits were the designer's gowns. In 2011, Kate channeled her inner Grecian goddess in a sumptuously draped, one-shoulder, silver gown for the National Memorial Arboretum Appeal Dinner.

The Duchess of Cambridge looked stunning at the BOA Olympic Concert in May of 2012. Kate showed the more adventurous side of her style by choosing a beautiful green hue. The Duchess' chiffon gown also showed off some skin via lace cap sleeves, a lace back, and a lace inset on the dress' bodice. A jewel-belted waist gave way to a dramatic, flowing skirt.

Aside from her Alexander McQueen wedding dress, Kate Middleton never looked more like a princess than in her pale pink Jenny Packham gown for the ARK Anniversary Gala in June of 2011. The degrade sequined gown, studded with Swarovski crystals made for a memorable fashion moment for the Duchess.

Start the slideshow for Kate Middleton's Best Jenny Packham outfits.

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