A German doctor who was born on the 14 May 1901 and died on the 15 April 1951. Ritter was a racial scientist who became prominent following his appointment as head of the Nazis Racial Hygiene and Demographic Biology Centre in Berlin in 1936. Ritter was primarily focused on the racial study of Roma and Sinti. His research was used to justify the persecution and murder of those that the Nazis deemed undesirable.