Rudolf Hippius
Rudolf Werner Georg Hippius was a German-Baltic psychologist and sociologist. He is best known for his work in "racial psychology" carried out under the auspices of the Nazi regime, and specifically his study of the "suitability" of German-Slavonic mischlinge which he carried out in the occupied Reichsuniversität Posen or University of Poznan from 1942-1944. The objective of the study was to determine whether individuals who were of mixed German and Slavonic heritage were suitable to be considered for German citizenship or if they should be deported. It was during this period that Konrad Lorenz worked with him on the project, and which was to affect the later reputation of Lorenz. He died in a Soviet prison camp in 1945.