A shield of three golden crowns, placed two above one, on a blue background, has been used a symbol of East Anglia for centuries. The coat of arms was ascribed by mediaeval heralds to the Anglo-Saxon Kingdom of East Anglia and the Wuffingas dynasty which ruled it. The flag of the East Anglian king and saint, Edmund the Martyr consists of three gold crowns on a field of blue ("Azure, three crowns Or"), The East Anglian flag as it is known today was proposed by George Henry Langham and adopted in 1902 by the London Society of East Anglians (established in 1896). It superimposes the three crowns in a blue shield on a St George's cross.