Map of the geography of Beowulf's World, Wikipedia

The map shows the land masses of what would now be Northern Germany, the Netherlands, Denmark, Sweden, and Norway, with the native peoples of the time labeled on the map.  

The Frisians are marked in orange and occupied what is now the north German and Netherland coasts.

The Jutes, in purple, occupied what is now the mainland of Denmark.

The Angles, in white, occupied what is now northern German east of Denmark.

The Danes, in pink, occupied what is now the islands of Denmark.

The Geats, in red, occupied Sweden to the east of the Gulf of Bothria and north of Stockholm.

The Wulfings, in yellow, occupied modern day Estonia and the southern tip of Finland by the Gulf of Finland.

The Swedes, in green, occupied northern Finland.