Legitimate rule depended on royal blood, but the kingdom’s confidence in the succession was another vital factor. Personal image was used as a means of communicating power, with portraits, coinage and official seals carrying the image of the ruler throughout the realm.
In centuries where few people could read or write, the monarch’s seal provided a pictorial expression of royal approval which all could understand, and the circulation of these wax impressions ensured that the monarch’s image would be conveyed to their subjects.
The practice of using a Great Seal dates back to the eleventh century and the reign of Edward the Confessor, where a double-sided seal matrix with an image of the sovereign was used to make a wax impression for attachment by ribbon or cord to royal documents. The great seal has changed many times throughout the centuries, with a new matrix engraved at the beginning of each new monarch’s reign, but the overall design of the Great Seal has remained unchanged.
In today’s constitutional monarchy, the sovereign acts on the advice of the government of the day, but the seal remains an important symbol of the sovereign’s role as Head of State.