Gregorio Marañón y Posadillo was a Spanish physician, scientist, historian, writer and philosopher. He was born in Madrid on 19 May 1887, where he died on 27 March 1960. He married Dolores Moya in 1911, they had four children (Carmen, Belén, María Isabel and Gregorio).
An austere, humanist and liberal man, he is considered one of the most brilliant Spanish intellectuals of the 20th century. He also stands out for his elegant literary style. He was a Republican, fought the Miguel Primo de Rivera dictatorship though he later showed his disagreement with Spanish Communism.
Son of a jurist, his mother died when he was three years old. He grew up as an avid reader, and learned English, French and German. From a very early age he was in contact with the intellectual circles of the time due to his father's friendships with José María de Pereda, Alfredo Vicenti, Marcelino Menéndez Pelayo and Benito Perez Galdós among others.
In Medicine School he had five great masters: Federico Olóriz Aguilera, Santiago Ramón y Cajal, Juan Madinaveitia, Manuel Alonso Sañudo and Alejandro San Martín y Satrústegui. He specialized in endocrinology and became professor of that specialty in Complutense University in Madrid since 1931. He founded the Institute of Medical Pathology and was president of the Institute of Experimental Endocrinology and the Institute of Biological Research. He contributed to establish a relationship between Psychology and Endocrinology.
Biography of Gregorio Marañón (in Spanish)