After the whirlwind of royal hats we saw this month, there are a few we missed that we need to catch up on!

Photos and discussion of hats worn by Lady Helen Windsor, Viscountess Linley, Lady Sarah Chatto and the Duchess of Gloucester at the Order of the Garter Service have been added to this post (thanks to one of our readers, E. who graciously shared her personal photos!)

A new queen to our blog, Queen Mesenate Mohato Seeiso of Lesotho, attended the opening day of Royal Ascot. Photos of her along with a discussion of her hat was added to this post.

And last but certainly not least, I finally tracked down photos of Princess Haya Bint Al Hussein of Jordan, Sheikha of Dubai at Day 4 of Royal Ascot and added them to this post. I regret I was not able to find photos sooner because I suspect this hat may be considered one of the best of the week. I would have loved to include it in our Ascot 2013 poll.

Photos from Reader Gabeyslave via Twitter; Max Mumby via Getty; and Rex Features via AP