According to People:
Prince Charles…was thus allowed to attend the festivities, making him the first heir apparent of a Queen to attend a coronation.
…the Queen said… “The ceremonies you have seen today are ancient, and some of their origins are veiled in the mists of the past… But their spirit and their meaning shine through the ages never, perhaps, more brightly than now. I have in sincerity pledged myself to your service, as so many of you are pledged to mine. Throughout all my life and with all my heart I shall strive to be worthy of your trust.”
To read the entire article in People, please click here.