The blushing bride Princess Eugenie. (Image: Instagram)

Princess Eugenie and Jack Brooksbank tied the knot today at St George's Chapel at Windsor Castle. 

The Princess walked down the aisle wearing a wedding gown designed by Peter Piloto and Christopher de Vos. The white dress, with a  portrait-neckline, featured a wide train but the bride opted not to wear a veil.

The blushing bride kept her makeup natural.

The lavish ceremony boasted a royal wedding party of about 850 guests which included Queen Elizabeth, Prince Philip, Eugenie's mother Sarah Ferguson, the Duchess of York, and her sister Princess Beatrice.

Here's a look at the Princess's dress and Twitter's responds to it: