The Wyvern Theatre in Swindon, Wiltshire, is named after the mythical wyvern which was once the emblem of the kings of Wessex. It was opened on 7 September 1971 by Queen Elizabeth II and Prince Philip. It is managed on behalf of Swindon Borough Council by Wyvern Theatre Ltd, a subsidiary of HQ Theatres Ltd.The auditorium has 635 seats, all designed to be within 70 feet from the stage.