any member of the Germanic peoples that inhabited and ruled England from the 5th century AD to the time of the Norman Conquest (1066). According to the Venerable Bede (Bede the Venerable, Saint), the Anglo-Saxons were the descendants of three different Germanic peoples—the Angles, Saxons, and Jutes—who originally migrated from northern Germany to England in the 5th century at the invitation of the British chieftain Vortigern to defend his country against Pictish and Irish invaders. Archaeological evidence suggests that the first arrivals antedated the Roman withdrawal from Britain in c. 410 and that settlers from Frisia also joined the migration. Their subsequent settlements in what is now England laid the foundation for the later kingdoms of Essex, Sussex, and Wessex (Saxons), East Anglia, Middle Anglia, Mercia, and Northumbria (Angles), and Kent (Jutes). The various Anglo-Saxon kingdoms spoke dialects of what is now known as Old English and produced an exceptionally rich vernacular literature, including the masterpiece Beowulf. Ethnically, the “Anglo-Saxons” actually represented an admixture of Germanic peoples with England's preexisting Celtic inhabitants and subsequent Viking and Danish invaders.

The term “Anglo-Saxon” seems to have been first used by continental writers in the late 8th century to distinguish the Saxons of Britain from those of the European continent, whom the Venerable Bede had called Antiqui Saxones (“Old Saxons”). After the Norman Conquest, the term simply came to mean “the English.” The name formed part of a title, rex Angul-Saxonum (“king of the Anglo-Saxons”), which was sometimes used by King Alfred (d. 899) and was revived by 11th-century kings.