From the Old English elements ead "wealth, fortune" and mund "protection". This was the name of two Anglo-Saxon kings of England. It was also borne by two saints, including a 9th-century king of East Anglia who, according to tradition, was shot to death with arrows after refusing to divide his Christian kingdom with an invading pagan Danish leader. This Old English name remained in use after the Norman conquest (even being used by king Henry III for one of his sons), though it became less common after the 15th century.
Famous bearers of the name include the English poet Edmund Spenser (1552-1599), the German-Czech philosopher Edmund Husserl (1859-1938) and New Zealand mountaineer Sir Edmund Hillary (1919-2008), the first person to climb Mount Everest.