Princess Beatrice might not have been in attendance, but that didn't stop Europe's other royals and their friends from putting their own spin on the fashion faux pas at Monaco's royal wedding.
From a princess in a sun hat and strappy sandals to a guest in white flowing gown, it wasn't just the paternity test raising eyebrows.
Naomi Campbell played by the rules at the ceremony in a green floral dress, but come reception time, all bets were off.
Breaking the unwritten rule that guests shouldn't wear white or black to a wedding, she changed into a white dress with a plunging neckline, side cut-outs and green beading.
So was this a fashion faux pas or fashion forward? The wedding dress designers contacted by Life & Style were split in their assessment.
Karen Willis Holmes says it's a matter of good manners to wear a different colour to the bride.
White is emerging as a trend in bridesmaid dresses, bolstered by Pippa Middleton's outfit in Britain's recent royal wedding, but that's at the bride's discretion. What a guest wears is not, and therein lies the problem.
Particularly when it's a supermodel.
"I think you could wear white but this is long and it has a train," she says.
"If it was a very un-wedding gown it is OK but this is borderline.
"I love the [concept of the bridesmaid wearing the] same colour as the bride I think it looks good visually in photos, I think it is stunning but then the bride has okayed it which is different to a guest doing it."
But Henry Roth says it's time we threw out these 'rules' and gave the thumbs up to Campbell.
"I think that it's time the world grew up and we got rid of some of the unnecessary taboos created in fashion, not to liberate women but to control their style and sense of confidence," he says.
"We don't have these rules for men."
The now Princess Charlene of Monaco wore two Giorgio Armani gowns - one at the religious ceremony and the other at the reception - and a powder blue outfit she designed in collaboration with Karl Lagerfeld to the civil ceremony.
Simple, elegant and traditional was the verdict of both Willis Holmes and Roth regarding the off-the-shoulder, boat neck gown worn at the church. Although the latter believes there's more to this dress than meets the eye - sometimes a wedding dress will reflect what is going in in the brides' heart and mind.
"She really embraced tradition, which is not a bad thing, but in the context of what's happening one can just imagine why she was grabbing at the traditions of yesteryear," he says.
"If the rumours are even 20 per cent true...it's not looking as bright as one might hope [for their future together]."
As for the reception dress with the tiered column skirt, Willis Holmes described it as "pretty" but "low key".
"They [both dresses] all look older than she does," she says.
"If she was 50 that would look pretty as well."
While there was no outrageous hat to spawn headlines, Facebook pages and a charity auction, an honourable mention goes to the groom's sister Princess Caroline for wearing a sun hat and strappy sandals to a civil wedding ceremony.
"It looked a little bit more like she was overdressed for the beach," says Willis Holmes.
"The dress is quite formal but if she had a smaller hat and high heels it would look more dressy."
Although she does get points for sun sense and comfort.
What's your verdict on the fashion at the royal wedding? Should we ditch the no-white at weddings rule for guests? Comment below.
Image via WikipediaPrincess Charlene admitted she was struggling to learn French, saying that she was going "step by step". However, she insisted she did not want to be "too cut off". She added: "I think for anyone living in a new country and adapting to a new lifestyle, it's a different role. I was an Olympic swimmer, I lived in a swimsuit, I lived on tour."
