The three-hour walking tour's attractions include the original Great Hall of Hogwarts School, built for Harry Potter And The Philosopher's Stone.
Tom Felton, who played Draco Malfoy, said:
"I will never forget walking through the Great Hall for the first time. It was just as magical now as it was."
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During their visit, Charles and Camilla will meet local businesses and people in the city centre before joining a reception in the Guildhall
The United Kingdom is on course to leave the European Union next year.
The European Research Group chair said the chances of Brexit in Name Only have been ‘significantly reduced’.