Paul Gyorgy was a Hungarian-born American nutritionist and pediatrician, a recipient of the National Medal of Science, best known for his discovery of three vitamins: riboflavin,vitamin B6, and biotin. Paul Gyorgy was born in Nagyvarad, Hungary on April 7, 1893. As a child, he was said to be full of curiosity and an avid reader and musician. His father was a respected general physician in that community for many years. In 1944, he became an Associate Research Professor of Pediatrics at the University of Pennsylvania School of Medicine. He was promoted to Professor in 1946. He also was the Chief of Pediatrics at the Hospital of the University of Pennsylvania from 1950-1957 and the Chief of Pediatrics at Philadelphia General Hospital from 1957-63. He became an Emeritus Professor in 1963 and continued to be active for the next 13 years until his death on March 1, 1976.