Hijo del dos veces presidente de Colombia, Alfonso López Pumarejo y de María Michelsen Lombana. Estudió en el Gimnasio Moderno y en la Universidad del Rosario, donde obtuvo su título de Abogado.
Son of two times president of Colombia, Alfonso Lopez Pumarejo and of Maria Michelsen Lombana. He(she) studied in the Modern Gymnasium and in the University of the Rosario, where it(he,she) obtained his(her,your) Attorney's title(degree).
During the governments of his(her,your) father he was kept removed from the political labor and devoted itself(himself,herself) to the academy, turning into teacher of Constitutional law of the University of the Rosario and to his(her,your) attorney's profession where it(he,she) faced a polemic in 1943 for representing the Colombian shareholders of the Dutch company Handel accused of being favored by a transaction of actions(shares) of this company while his(her,your) father Alfonso Lopez Pumarejo was exercising the presidency of the republic.