Monaco's Prince Albert and his fiancee Charlene Wittstock will attend the British royal wedding.
The couple will be among thousands celebrating with Prince William and Kate Middleton when they tie the knot at London's Westminster Abbey on April 29.
Former Olympic swimmer Charlene, 33, will likely be taking notes on the day, in preparation for her own nuptials, scheduled for July 2 in Monaco.
Speaking ahead of her wedding to the prince, Zimbabwe born Charlene has explained how she knew she wanted to marry Albert, 53, from the moment she met him, and how her love has only grown for him in the 11 years they have been together.
She said: "He's the most charming generous person I've ever met. His patience knows no bounds and he is exceptionally caring.
"He has a unique ability to make everyone he comes into contact with feel special.
"He's the man I dreamed of. He's perfect for me in every way."
The royals are on the 1,900 strong official guest list to the wedding, which will see them mix with other dignitaries and royals from around the world, ordinary people connected to the royal couple - such as Kate's parent's, neighbours and local pub landlord - and celebrities such as Elton John and David and Victoria Beckham.
Unfortunately Kate and William will not be able to visit Monaco to attend Charlene and Albert's wedding, as they will be on their first joint overseas tour, to Canada.