Laura Bechtolsheimer won a gold medal in dressage for Britain at the London 2012 Olympics, and Mark Tomlinson plays polo with both princes.
The hour-long ceremony took place in Arosa’s Protestant Church and was followed by a reception at a hotel owned by Bechtolsheimer’s grandfather.
The Duchess of Cambridge wore an unidentified cream coat with brown fur trim.
Under the coat, Kate wore her previously seen MaxMara leopard print dress.
Completing her outfit, the Duchess accessorized with her brown Lock & Co hat (worn at the Irish Guard Ceremony in March of last year), her brown suede Emmy heels, a brown matching Emmy 'Natasha' clutch, and her Annoushka pearl drops with Kiki McDonough diamond hoops.