Segundo Serrano Poncela

Segundo Serrano Poncela (1912 - 9 December 1976) was a Spanish Republican politician, writer, literary critic, and essayist associated with the Generation of '36 movement. He was a contributor to Claridad, the periodical of Francisco Largo Caballero, as well as a member of the Defense Council of Madrid, in which capacity he signed the orders for the removal from the prisons of Madrid various inmates who were subsequently massacred. At the end of the Spanish Civil War he went into exile in Latin America, where he taught literature.

Born in Madrid, Serrano obtained a Bachelor of Arts at the Facultad de Filosofía y Letras in the University of Madrid, and later earned a law degree. As a student he joined the Socialist Youth of Spain (FJS). Like most of the members, he belonged to the Caballerist wing that was opposed to the tendencies led by Julián Besteiro and Indalecio Prieto. He was one of the editors of Renovación, an organ of the FJS, and joined the executive of the FJS in 1934. He took part in the negotiations over the unification with the Communist Youth, and after the creation of the Unified Socialist Youth (JSU), he formed part of its executive. Along with most of the other JSU directors who had originated from the FJS, he joined the Communist Party on 6 November 1936. He was immediately named deputy of public order for the Defense Council of Madrid at the orders of Santiago Carrillo, secretary general of the JSU and a fellow veteran of the FJS. He remained in the office until 27 November, when, depending on the source, he either resigned or was dismissed by Santiago Carrillo. During his time in that post, he had signed the orders that resulted in the removal, throughout the months of November and December, of various nationalist inmates from the Madrid prisons. Most of these prisoners would eventually be massacred.

...
Wikipedia