It was the tiny, land-locked country's turn to shine.
So Luxembourg's leading ladies made sure they were dressed to perfection as they celebrated the civil wedding of heir-to-the-throne Prince Guillaume and Belgian Countess Stephanie de Lannoy.
The royals had colour coordinated for the occasion, stepping out in matching gold and cream-hued ensembles.
The bride herself was impeccably demure in a tweed cream Chanel suit paired with a coveted handbag by the French brand.
And Alexandra, the groom's sister, dazzled in a gold Dior jacquard dress and a cropped jacket.
Grand Duchess Maria Teresa had also gone for all-out gold with her shiny gold leaf Elie Saab creation.
Meanwhile, Guillaume's sister-in-law Princess Tessy had opted for a more toned-down version of the colour, sporting a beige satin Ralph Lauren number featuring a lace corset top.