[2] He descended paternally from the old Tyrolese noble family In der Maur zu Strelburg und Freifeld.

[5] From 1918 until 1933 he played an active role in the Anschluss movement, focused on Austria and Germany uniting to form a "Greater Germany", was a supporter of Austrian National Socialism[6] and was a leading member of the Austrian Schutzstaffel as well as a member of the National Socialist Landesleitung, working alongside Josef Leopold.

[7] In July 1919 he went to Berlin as part of a Tyrolean delegation to discuss a potential German annexation of Austria.

[8] He considered Austria a "dictated" state, imposed upon Germanic people, preventing them from freely uniting with Germany.

They had three children including Wolf-Bernhard Carl Borromaeus Paul Robert von In der Maur.