That’s because everyone blames the Jutes for everything. Wait, what?
The Saxons are also left out (it’s called England, after all) and Alfred the Great was the Saxon king of Wessex. :^) The Jutes left their name on Jutland in Denmark, and the Saxons left theirs on Saxony in Germany, and on the first “National Treasure” movie.
I was Jute askin’
saxons also are extant in the kingdom-names Essex, Sussex, Wessex - east, south, and west saxons. iirc old english for saxon was ‘seaxe’ (nominative singular?)
angles, aside from engleland itself, are in the placename east anglia.