The Dutch queen chose a full length red dress by Valentino for the concert that she and Willem-Alexander hosted as a thank you for their welcome in Ottawa. Maybe it was the slicked back hair or the fact that her husband seemed to have hit the hair gel as well but the overall look was very glamourous and ever so slightly Dynasty.
It was pretty hard to pick a stand out look for Maxima from her Canadian wardrobe because everything she wore was worthy of a fashion page all on its own. On day three there was a cream fitted dress with gold belt, gold shoes and straw hat that was a wow of an outfit all on its own.
The Royal Delegation took a quick tour of a @QuantumIQC lab to learn about #quantum research at #UWaterloo #cdnpse pic.twitter.com/lHra5QKN8Z— University Waterloo (@UWaterloo) May 28, 2015
Letizia's other day outfits for the tour were based around more muted tones. There was a grey trouser suit for a visit to a market in El Salvador.
For a visit to a water and sanitation plant in El Salvador she chose a pair of black trousers, loose white top and navy jacket.
And as she ended the tour she rewore her Hugo Boss pink and mauve print dress, first seen just about a year ago as she went solo as a queen for the first time, for a lunch with the President of El Salvador and his wife. It was a bit creased this time round but still catches the eye.
Meanwhile, Queen Sofia was doing was Queen Sofia does best - rocking a metallic effect two piece suit. A bit like the Queen Mother before her, she has settled on a style that works and bought it in just about every colour. This time round it was silver and looked super.
Sofia also opened the Madrid Book Fair in the week and went for a black and white mix that tapped into the monochrome madness that swept the Royal Wardrobe last week. It was quite a modern look for the queen and she looked very relaxed and happy as she talked books in the sizzling summer heat.
The Crown Princess of Norway was also coming over all bookish this week as she hit the Literature Train for 2015 to bring reading to a wider audience. Mette-Marit went for black jacket and skirt combos all the way through with a monochrome attempt the best of the lot.
Nå har @CrownPrincessMM ankommet! Velkommen til #Littfest. #litteraturtoget #Minbok @Kronprinsparet pic.twitter.com/TYvAdys3D3— Litteraturfestivalen (@Litteraturfest) May 26, 2015
There was also a misty mauve pleated chiffon type skirt which looked striking but strange.
Takk skal du ha @CrownPrincessMM! Det har vært en ære å få ha deg med på #littfest! #minbok #litteraturtoget @Kjellm0 pic.twitter.com/8MfbkvZpwH— Litteraturfestivalen (@Litteraturfest) May 27, 2015
Crown Princess Victoria of Sweden's most striking outfit of the week was also an all white affair. The princess picked trousers, top, jacket, ballet pumps and trilby hat in the hue for a trip to sunny Gotland. The white look with the bright sunshine provided some of the most summery royal photos of the year so far and the outfit was so unusual it was a total scene stealer.
The decision of the King of the Belgians to do up his jacket at another engagement for the royal couple almost overshadowed Mathilde's outfit as everyone waited for Philippe to breathe out and send a button flying. He didn't and it didn't meaning UN Secretary General Ban Ki-Moon could breathe a sigh of relief and we all got a chance to enjoy a very Mathilde outfit of bright orange wrap top, grey and orange floral print skirt and orange shoes.
Lunch voor de leden van de Jury van de Koningin Elisabethwedstrijd #kew2015 #KEW pic.twitter.com/7erjm2nksK— Belgian Royal Palace (@MonarchieBe) May 26, 2015
For the big final, the Queen of the Belgians chose a simple white dress that came a close second as her best look of the week.
But Mathilde's top outfit was the deep pink shift dress worn to one of the finals of the music competition. It was a simple but effective look but got extra points for co-ordinating perfectly with the cardigan worn by her daughter, Elisabeth, whose pretty butterfly dress was a stylish, chic look perfect for a princess at the start of her teenage years.
There was an unusual burst of green for Denmark's queen in the week. Margrethe's suit was pretty similar to many she's worn, complete with matching hat, but the unusual shade set it apart.
Crown Princess Mary went for royal blue for a meeting in the week. The top of the dress was visible as she sat at a table and looked slimline and chic. There might have been a puffball skirt underneath for all we know but the look, what there was of it, was good.
There were navy blue suede wedges on display when Mary visited a school in the week. They were worn with grey mix cut off trousers, a white shirt and a dark grey jacket and if anyone is still counting points between Mary and Letizia then add some more to Denmark's column. As both women did smart casual in grey this week, Mary edged it.
You know how those Mary copies Kate copies Letizia copies Mary stories love doing the rounds. Well, this week Mary picked a Breton top with jeans for a sporty day out and only a certain duchess being no maternity leave prevented an immediate deluge of Mary copies Kate stories hitting the stands.
There have been plenty of stories too about the similarity between Mary and her sister-in-law Marie with questions about who picks the looks they seem to share first. There was no danger of that this week as Marie also went to a sports event but went for a petrol green/ grey jacket with her jeans.
There was definitely no dressing down for the British Royal Family in the week. The State Opening of Parliament means full ceremonial and for the ladies that's a white dress and best jewels. Easy for The Queen who chose yet another perfect full length gown for the occasion and popped on the Imperial State Crown. The look was, as ever, breathtakingly splendid and stunning.
The Queen chose a simple pale green dress for a series of audiences in the week.
And The Duchess of Cornwall ended her week on a high as well as she chose a navy blue dress with huge white spots for the final of the BBC Radio Two #500words competition. She was handing out medals to young people who had won a story writing contest and Camilla went home safe in the knowledge she'd scored a win of her own with this look.