She looks gorgeous! The first photos of Kate Middleton at Prince Harry and Meghan Markle's royal wedding have emerged — and she looked beautiful just weeks after giving birth to her thild child, Prince Louis. Kate showed off her enviable post-baby body in a cream-colored dress and a matching hat as she arrived at St. George's Chapel at Windsor Castle on Saturday, May 19.

It was previously revealed that the 36-year-old Duchess of Cambridge would have one very important style rule to follow on the day of Harry and Meghan's nuptials. Since every royal woman must wear a hat to official royal events, we could guarantee that Kate would show up wearing a hat — and she didn't disappoint!

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Prior to Harry's big day, Kate couldn't have been more excited for her brother-in-law to tie the knot with Meghan. "We are very excited for Harry and Meghan. It has been wonderful getting to know Meghan and to see how happy she and Harry are together," she and her husband, Prince William, said in their a statement.

Kate also spoke out on her own soon after. "[William] and I are absolutely thrilled. It’s such exciting news. It’s a really happy time for any couple and we wish them all the best and hope they enjoy this happy moment," she gushed. How sweet of her!

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