|Born||19 May 1887
|Died||27 March 1960
Gregorio Marañón y Posadillo (19 May 1887 in Madrid – 27 March 1960 in Madrid) was a Spanish physician, scientist, historian, writer and philosopher. 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 Medical School he had five great teachers: 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 was also a member of the International Society for the History of Medicine. Marañón founded the Institute of Medical Pathology and was president of the Institute of Experimental Endocrinology and the Centre of Biological Research. He contributed to establish a relationship between Psychology and Endocrinology.
- Tiberius: A Study in Resentment (1956) – translated from Tiberio: Historia de un resentimiento (1939)
- 2001, Franz-Andre Sondervorst, Chronique de SIHM