The Earl and Countess of Wessex will fly the flag for the British royalty at Luxembourg's impending royal wedding between Prince Guillaume and Stephanie de Lannoy.
Sophie and Edward will join a host of special guests from around the world as they celebrate with the happy couple on October 20.
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The final offiicial guest list reveals that Princess Victoria of Sweden and her husband Daniel, Prince Frederik and Mary of Denmark and Crown Prince Felipe and Letizia of Spain, as well as many others, will also be there to support the Hereditary Grand Duke and his bride-to-be.
But Sophie and Edward, who married in 1999, are no strangers to European royal weddings. The duo having attended those in Monaco, Norway , Denmark and Sweden.
On home soil the couple were also present at the union of Zara Phillips and Mike Tindall, as well as the high-profile marriage of Prince William's to the Duchess of Cambridge.
Proceedings in Luxembourg begin on Friday 19 with a civil ceremony and champagne reception before the grand ceremony takes place on Saturday at Our Lady of Luxembourg Cathedral.
Royal Guest ListMembers of the Luxembourg Royal Family
Grand Duke Henri and Grand Duchess Maria Teresa of Luxembourg
Prince Felix
Prince Louis and Princess Tessy
Princess Alexandra
Prince Sebastian
Members of the Lannoy family
Count Philippe, Father of the Bride
Count and Countess Jehan and Beatrice
Count and Countess Christian and Luisa
Countess Gaelle
Countess Amaury
Count and Countess Olivier and Alice
Countess Isabelle and Jean Charles de le Court
Members of other Royal Families
Earl and Countess of Wessex, Edward and Sophie
King Harald and Queen Sonia of Norway
Crown Prince Haakon and Princess Mette Marit of Norway
Prince Felipe and Princess Letizia of Spain
Princess Marta Luisa and Ari Behn
Crown Princess Victoria and Prince Daniel of Sweden
Prince Carl Philip of Sweden
Queen Beatrix of Holland
Crown Prince Willem Alexander and Princess Maxima of Holland
Prince and Princess of Lichtenstein
Crown Prince Naruhito of Japan