"On the basis of the expert analysis, it is possible to conclude with a large degree of certainty that parts of the skeleton... belong to Tsarevich Alexei and his sister, GrandDuchess Maria Nikolayevna Romanova", Vladimir Gromov told Russian media.
Queen Margarethe of Denmark, Crown Prince Alexander of Serbia and Princess Katherine, the Grand Duke and Duchess of Luxembourg, King Harald of Norway and Queen Sonia also attended.
It became an even more grand event when the Duke and Duchess of Cornwall arrived, walking down the line of tables and even stopping to sit down on a potentially soggy seat to chat to some of those munching their food.