Sønderjysk
During the 17th and the 18th centuries, the population in the area south of the Schlei (Sli) inlet switched to Low German, few details being known about their former South Jutlandic dialect. The people of Angeln (Danish "Angel"), the countryside between Flensburg and the Schlei where the Angles who settled England also originally came from, kept to their South Jutlandic dialect for a longer time, but often had some knowledge of Low German as well.