Question: What is the name of the monarch's official flag which bears, in banner form, the arms used by the Queen in her official capacity and which are authorised from the Lord Chamberlain's Office, a department within the British Royal Household?
Sentence (from "Lord Chamberlain's Office"): For example, in April 2005 it organised the wedding of Charles, Prince of Wales and Camilla Parker Bowles.
Relevant evidence: No