Angles, Saxons and Jutes who didn't Migrate

[Norb]

What happened to the Angles, Saxons and Jutes who didn't migrate to other countries? I would like to know some more on the ones who stayed

[Peterski]

They became ancestors of modern Danes and North-West Germans.

But Denmark also received additional immigrants from Scandinavia.

[CertifiedCracker]

Probably stayed in the Netherlands, northern Germany, and Denmark.