What about the Jutes? They’re always left out.
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.
And the Picts, don’t forget the Picts.