Marcelino Bilbao Bilbao (16 January 1920 in Alonsotegi–25 January 2014) was a lieutenant in the Isaac Puente battalion of the Confederación Nacional del Trabajo (CNT) of the Basque Country and survivor of Mauthausen concentration camp and the Ebensee concentration camp. Biography Orphan by birth, he left school at the age of twelve. He temporarily worked at the “La Primitiva” mine in Castrejana (Baracaldo). Shortly after, he started working at the “Rica” jute spinning factory. Spanish Civil War During the Second Spanish Republic he was a member of the Unified Socialist Youth (JSU), but at the outbreak of the Spanish Civil War he joined the Isaac Puente No. 11 battalion of the Euzko Gudarostea, the No. 3 of the Euzkadi Confederación Nacional del Trabajo (CNT). In November 1936 he participated in the Villarreal offensive. In February and March 1937 Marcelino Bilbao fought with the Isaac Puente battalion in the siege of Oviedo, integrated into the 1st Brigade of the Basque Expeditionary Brigades. Faced with General Mola's offensive, he participated in the withdrawal of the Guipuzcoan fronts, was a direct witness to the bombardment of Guernica and fought in the battle of Sollube. After the fall of the Bilbao's Iron Ring, it went to Santander and from there to Asturias, participating in the Battle of Mazuco. In this battle, the entire battalion was decorated with the Medal of Freedom (highest distinction of the Second Spanish Republic) awarded by Belarmino Tomás, president of the Sovereign Council of Asturias and León, to the commander of the battalion, Antonio Teresa de Miguel. When the northern front fell, he managed to embark in Avilés for Bordeaux. From there he was transferred by train to Catalonia. In December 1937, Marcelino Bilbao joined and commanded the “63. Maxim ”Machine Gun Company of the Special Defense Against Aircraft (DECA) of the People's Army of the Republic (EPR). Under his leadership the unit fought in the Battle of Teruel (February 1938), where he met Valentín González, “El Campesino”. After the unsuccessful offensive on Teruel, the company fell back until it reached Lleida, where it coincided with Valentín González (“El Campesino”) and Enrique Lister. During the summer of 1938 he participated in the Battle of the Ebro and was awarded the Medal of Valor. At the end of 1938 Marcelino Bilbao was transferred to Battery No. 528 Oerlikon of the Defensa Especial Contra Aeronaves (DECA) (Special Defense Against Aircraft) and on