The proposed relationship of Margaretha Braun as the mother of
Margaretha Niebuhr and
Aganetha Teichroeb is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a distant cousin relationship between ADN (a descendant of the Margaretha Niebuhr ancestral line) and TU (a descendant of the Aganetha Teichroeb ancestral line) with 95.13 cM of shared DNA across 6 HIR segments.
This match is consistent with their placement within these shared ancestral branches.