Special delivery: Royal Wedding invites in the post
20 February 2011 Last updated at 08:52 GMT
Some 1,900 guests will be at the wedding of Prince William and Kate Middleton, St James's Palace has said.
No names have officially been released as invitations begin arriving but more than half are family and friends.
UK and foreign dignitaries, senior politicians, charity workers and celebrities like the Beckhams are said to be among the Westminster Abbey congregation on 29 April.
Nicholas Witchell reports.