William thanks Queen as Jubilee tour visits Nottingham
13 June 2012 Last updated at 19:53 BST
Thousands of people in Nottingham have watched Prince William give a speech, praising his grandmother.
The Duke and Duchess of Cambridge, were in the city with the Queen, as part of the Diamond Jubilee tour.
The Duke of Edinburgh did not join the royal party - he is still recovering from an infection.
Nicholas Witchell reports.