Was any disciplinary action taken on Mackensen by the Nazi party?
No
Yes
He was tried for disloyalty
Not known
Answer
The Nazis took over in Germany in 1933, but Mackensen was still alive. They decided not to take any disciplinary action against him, because they felt that it would be unpopular with the public. Mackensen was seen as a national hero, and the Nazis didn't want to alienate his supporters.
Marching Through History: The Life and Legacy of August von Mackensen