The maternal relationship between Blondina Grünke and her daughter
Frida Wagner is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant CSP.
The segmental (via DNA segment triangulation) and total DNA shared between CSP and other confirmed descendants of
Andreas Ludwig Grünke/
Mathilde Hübner is consistent with the expected ranges for their respective relationships. Since CSP descends from Andreas Ludwig Grünke/Mathilde Hübner through Blondina Grünke and her daughter Frida Wagner, the presence of significant shared DNA between CSP and other known descendants of Andreas Ludwig Grünke/Mathilde Hübner validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple Andreas Ludwig Grünke/Mathilde Hübner through Blondina Grünke to Frida Wagner, and ultimately to CSP, confirming this direct ancestral connection through multiple generations.