Rudolf Peter Heinrich Heidenhain was a German physiologist born in Marienwerder, Province of Prussia. His son, Martin Heidenhain, was a highly regarded anatomist. Wikipedia
Born: January 29, 1834, Kwidzyn, Poland
Died: October 13, 1897 (age 63 years), Wrocław, Poland
Children: Martin Heidenhain, Lothar Heidenhain, and Arthur Heidenhain
Parents: Heinrich Jakob Heidenhain