Victoria, Crown Princess of Sweden is a very big Elie Saab fan, she wore a dress by Elie (above) to her pre-wedding concert on June 18, 2010. Victoria wore Elie Saab to other important events, the wedding of the Duke and Duchess of Cambridge, the wedding of the Prince and Princess of Monaco, the Nobel Prize Awards last year and in 2010, her daugther's christening in May of last year.
Grand Duchess Maria Teresa of Luxembourg is a big fan, like Victoria. She's worn Saab at the wedding of the Duke and Duchess of Cambridge, the wedding of her son, Guillaume (above, Civic service), a visit to Germany, and to the Nobel Prize awards in 2011 (same dress, different occasion).
After the royal wedding in Luxembourg, the Royal Order of Sartorial Splendor showed different royals who wore Elie Saab and it looks awesome!
Pictures: Google (Key Words: "Crown Princess Victoria Elie Saab", "Grand Duchess Maria Teresa Elie Saab", "Princess Stephanie Wedding Dress")