Where did the Sephardi Jews used to have a large presence ?
According to a 2008 study by Adams the inhabitants of the Iberian Peninsula have an average of 20 % of Sephardi Jewish ancestry with significant geographical variations ranging from 0 % on Minorca to 36.3 % in southern Portugal ( the term Sephardi is used here in its strict sense to mean the Jews settled in the Iberian peninsula before the expulsions in and after 1492 ) .