Blumenthal's first wife was Wilhelmine Hainsworth, daughter of the Yorkshire industrialist A.W. Hainsworth. They had two sons who accompanied their mother back to England following the divorce. One was the historian
Charles Arnold-Baker, who joined the British Army when WWII broke out, both later serving in
MI6. After divorcing on grounds of his adultery, Albrecht remarried and had a further four children, Albrecht, Viktor, Karolina and Erika. Albrecht is a Lutheran Pastor, and Viktor currently teaches at Marburg University in the footsteps of his father. Albrecht's cousin
Hans-Jürgen, whom Albrecht introduced to Claus von Stauffenberg, was hanged for his part in the
July Plot. ==Suicide==