It was a far cry from the formalities of last night's state banquet which saw Andrew's sis...

Queen Letizia visits London's Francis Crick Institute`

After bidding their hosts farewell at Buckingham Palace, Queen Letizia and King Felipe VI travelled to the Francis Crick Institute to meet members of the Spanish scientific community.

Kate Middleton is always so classy - love this updo. If I had time to fashionstalk a celebrity, it would be her.

16 Times Kate Middleton Proved She's Utterly Flawless

The Duchess of Cambridge, wears an ice blue lace dress designed by Alice Temperley and her hair in a bun with pearl-headed pins to the Diamond Jubilee tea party at the British High Commission in Kuala Lumpur.

MyRoyals: Spanish State Visit to France, Day 3, June 4, 2015-Queen Letizia and King Felipe

MyRoyals: Spanish State Visit to France, Day June Letizia and King Felipe

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New banana republic geo midi skirt blue white teal 2, 4, 6, 8, 10

Duchess of Cambridge, nee Kate Middleton, steps out for an official engagement in London on May 16 in a Banana Republic skirt and a Goat blouse.

Letizia perfectly coordinated her heels to her full, knee-length skirt, which she wore wit...

Queen Letizia of Spain is glamorous in blue and white in Madrid

King Felipe VI of Spain and Queen Letizia of Spain attend the annual meeting with members of Princess of Asturias Foundation at El Pardo palace on June 2017 in Madrid, Spain.

Queen Letizia wore a dress of Hugo Boss, shoes of Lodi, bag of Magrit.

Queen Letizia wore a dress of Hugo Boss, shoes of Lodi, bag of Magrit.

Queen Letizia shows off an eye-catching skirt at mental health confederation in Madrid | Daily Mail Online

Queen Letizia goes graphic in Madrid

Queen Letizia of Spain Photos Photos - Queen Letizia of Spain arrives for a meeting at CSME (Espana Mental Health Confederation) on October 2016 in Madrid, Spain. - Queen Letizia Attends a Meeting at the CSME (Espana Mental Health Confederation)

Stylish Letizia has won plaudits for her show-stopping outfits this week, despite paring back her normally racy look in favour of more conservative styles. She has turned to her go-to designer Felipe Varela for her more formal ensembles