Prince William and his wife, Kate, arrived at Edinburgh's Cannongate Kirk today for his cousin Zara Phillips's wedding to Mike Tindall. It was their second day of celebrating, after Kate wore her green Diane von Furstenberg dress to a yacht party yesterday. William and Kate will join their family after today's vow exchange for a reception of at the Palace of Holyroodhouse, Queen Elizabeth's Scottish residence. The groom arrived at the church in a suit, instead of a traditional Scottish kilt. It's still not known what designer Zara chose for her big day, but she is rumoured to be wearing, just like Kate, a tiara from the royal collection.