The royal wedding of Zara Phillips and rugby star Mike Tindall cost British taxpayers £400,000 (NZ$816,340), it's emerged.
Buckingham Palace said the event was a "private family affair", but the cost of guarding members of the royal family and celebrity guests came out of the public purse.
Details of royal police operations are normally kept secret for security reasons. But the cost of Operation Opal - the codename for Zara' s wedding in Edinburgh in July - has been revealed in a report by Chief Constable David Strang ahead of a Lothian and Borders Police board meeting next week.
The bill was almost as much as the cost of the Pope's state visit to the Scottish capital last year.
In the run-up to the event, just a few months after the wedding of the Duke and Duchess of Cambridge in London, Miss Phillips insisted she wanted it to be low-key and private.