Elie Saab's guest dressing monopoly at the Luxembourg royal wedding Not only did Lebanese couturier Elie Saab dress the bride, Countess Stephanie de Lannoy, he kitted out many of the wedding party, too. Who said the craft of Haute Couture was no longer a commercial endeavour? The Luxembourg royal wedding of HRH Prince Guillaume to Belgian Countess Stephanie de Lannoy over the weekend was awash with sparkling sequins - and the choice of bespoke, red carpet-appropriate outfits meant booming business for Elie Saab. IN PICTURES: Stylish brides through history The Lebanese designer, who shows his collections during Paris Fashion Week, was responsible for the 28-year-old bride's gown: a one-off, haute couture creation in ivory lace embroidered with silver thread leaves. A vast four-metre also served to show off the couture house's expert craftsmanship - and it didn't stop there. HRH Prince Guillaume to Belgian Countess Stephanie de Lannoy following Satrurday's ceremony. Wedding guest Princess Clotilde of Savoy, Venice and Piedmont (don't you just love those grand titles?) arrived at the Our Lady of Luxembourg Cathedral on Saturday in a pale grey, peplum-waisted cocktail dress in crepe with a matching wool coat and leather sandals, also courtesy of Mr Saab. Meanwhile on Friday October 19, when Prince Guillaume and Countess Stephanie were first married in a civil ceremony, the Grand Duchess Maria Theresa of Luxembourg dazzled in an antique gold brocade three-quarter length coat and a golden lace and guipure dress, featuring crystal brooches and a gold metal belt. Countess Stephanie de Lannoy wearing an Elie Saab gown at the Gala Dinner following her civil ceremony on Friday. Guests then let their hair down at a ball (post-civil ceremony but pre-Cathedral ceremony, are you keeping up?) in what must have resembled an Elie Saab fashion show. Six of the main guests et the event, including the bride, the Grand Duchess, Princess Astrid of Belgium, and childrenswear designer Princess Marie-Chantal of Greece, were all decked out in Saab's show stopping creations. Princess Marie-Chantal of Greece and Princess Astrid of Belgium, both wearing Elie Saab gowns. Photos: Getty The advantage of Elie Saab presiding as the go-to outfitter for the royals ensured that the ultimate faux pas could not be committed: there was more chance of two guests turning up naked than in the same outfit. The lavish nuptials are thought to have cost in the region of €500,000. So next time you hear someone asking who on earth buys Haute Couture, now you know; those European royals are excellent for business.