Marie-Chantal knows a thing or three about fashion, so there were no surprises when she turned up in a seriously standout look for the wedding of her brother-in-law, Prince Nikolaos of Greece, and Tatiana Blatnik at Spetses in 2010. A host of European royals attended the event, but all eyes were on Marie-Chantal in this rose pink gown with embellished shawl.