text: continuity from the EIA in Norway and northern Sweden (Fig. 4a). When 
  considered collectively, the individuals who show evidence of central 
  European-related ancestry are mostly observed in regions histori- 
  cally within the Danish sphere of influence and rule. Currently, no such 
  individuals, for example, are noted in eastern central Sweden, which 
  was a focus of regional power of the Svear (Fig. 4a). The difference in 
  distribution could suggest that the central European-related ancestry 
  was more common in regions dominated by the historical Götar and 
  groups inhabiting the lands on the borders of the Danish kingdom. 
  
  that of established groups, we focused on the island of Öland in south- 
  east Sweden, where 23 individuals for whom we could reconstruct 
  ancestry portraits also had associated strontium stable isotope data66. 
  Strontium isotope data from dental enamel reflect the geology of the 
  region where an individual grew to maturity, and there are considerable 
  differences in expectations between Öland and many other regions 
  in northern Europe. The full range of strontium isotope ratios in 109 
  individuals show two modes, a majority group with low ratios and a 
  second minority group with high ratios falling outside the expected 
  range of local fauna (Fig. 4b). Among 23 individuals with genomes in 
  our data, all 5 individuals with 100% ancestry relating to central Europe  To test the extent to which the variation in ancestry was consistent 
  with mobility during the lifetime of the individuals or, alternatively, 