Otto Heinrich Warburg, Nobel Prize in Physiology or Medicine, 1931

Wikipedia Biographical Summary:

"...Otto Heinrich Warburg (October 8, 1883 – August 1, 1970), son of physicist Emil Warburg, was a German physiologist, medical doctor and Nobel laureate. He served as an officer in the elite Ulan (cavalry regiment) during the First World War, and won the Iron Cross (1st Class) for bravery. Warburg was one of the 20th century's leading biochemists. He won the Nobel Prize of 1931. In total, he was nominated an unprecedented three times for the Nobel prize for three separate achievements..."

"...Warburg's father, Emil Warburg, was a member of the illustrious Warburg family of Altona, and had converted to Christianity reportedly after a disagreement with his Conservative Jewish parents. Emil was also president of the Physikalische Reichsanstalt, Wirklicher Geheimer Oberregierungsrat (True Senior Privy Counselor). His mother was the daughter of a Protestant family of bankers and civil servants from Baden.
Warburg studied chemistry under the great Emil Fischer, and earned his Doctor of Chemistry in Berlin in 1906. He then studied under Ludolf von Krehl, and earned the degree of Doctor of Medicine in Heidelberg in 1911..."

"...Warburg investigated the metabolism of tumors and the respiration of cells, particularly cancer cells, and in 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme."[2] The award came after receiving 46 nominations over a period of nine years beginning in 1923, 13 of which were submitted in 1931, the year he won the prize..."

SOURCE: http://en.wikipedia.org/wiki/Otto_Heinrich_Warburg