Kate Middleton, Britain's Duchess of Cambridge, has had a royally eventful year. Becoming a mom has surely made 31 her favorite age yet, but as the Duchess turns 32 today January 9th, we can't wait to see what is yet to come.

Last year Prince William took Kate, her family, and close friends to see a Cirque de Soleil show to mark her birthday. (And they were celebrating a pregnancy - albeit a difficult one at first - as well!) So how will the Duchess celebrate this year? Kensington Palace has only said that Kate "is spending her birthday privately." It's believed that she plans to ring in 32 quietly at home in London with family.

Knowing the Middleton family -- and that little thing known as a multi-million dollar party planning business -- we're sure they've got something up their sleeves. The family has always celebrated birthdays with gusto, and Kate mentioned in an interview for the business that her favorite party memory was the "white rabbit marshmallow cake" her mother made for her seventh birthday. Both Carole and Pippa were spotted shopping this week in London at some of Kate's favorite stores.

As Prince William recently started his courses at Cambridge University, she'll likely spend the day without him at her side, but they are expected to celebrate together in the evening. We're hoping Wills and Pippa planned a lavish dinner for Kate at the Palace (we're picturing a Downton Abbey dinner party -- but better) and we're sure having close friends and family there is all she'll want.

2014 is already set to be a busy year for the Cambridge family. After a quiet first 10 weeks while William takes classes, the couple will head off to Australia and New Zealand for their first extended Royal Tour. Prince George will accompany his parents on this exciting month-long trip.

We expect more details on the Duchess's birthday will emerge in time, but to celebrate we rounded up Kate's 32 best looks! Click through the gallery above to see -- naturally we included her Sarah Burton for Alexander McQueen wedding gown, the bespoke polka dotted Jenny Packham dress and many more iconic pieces.