Dr. Josep Castells Guardiola was born in Barcelona on May 27, 1925, the son of the doctor Feliu Castells Farrarons and Josefina Guardiola Rosa. His father, apart from being a good doctor, was appointed doctor of the Barça first team during the term of President Rafael Llopart (1915-16). Josep Castells attended high school at the Balmes Institute and obtained a degree in Sciences, Chemistry Section, from the UB with Extraordinary Prize (1948).