St. Edward's Crown is a part of the coronation regalia. The crown was commissioned for the Coronation of Charles II on 23 April 1661 from the Crown Jeweller, Robert Viner. After the 1689 coronation of William III, its importance diminished. It was often carried in procession and set on the altar rather than placed on the Monarch's head. The Imperial State Crown was used instead for the actual crowning. It was not until George V's coronation in 1911 that the crown resumed its traditional place.