PERSON@1 and the Avars Birka , LOCATION@1 , LOCATION@2 Calleva Atrebatum , LOCATION@3 , LOCATION@4 - MISC@1 walled city NUMBER@1 miles south of present day Reading , ORGANIZATION@1 .

PERSON@2 , LOCATION@1 , LOCATION@2 Calleva Atrebatum , LOCATION@3 , LOCATION@4 , LOCATION@5 - MISC@1 walled city NUMBER@1 miles south of present day Reading .
