and economics at unspecified time in the late 1920s. In February 1936 he married María Dolores Aburto Renobales (?-2004), descendant to a wealthy bourgeoisie Biscay family. Her father, Eduardo Aburto Uribe, was engineer involved in number of provincial industrial enterprises, shareholder of many Biscay mining and metalworking companies, and alcalde of Getxo between 1916 and 1920. Luis and María had 4 sons; active in business, they did not engage in politics. Many of Luis' siblings were active in Traditionalism. Two of his younger brothers were executed by Republican militia in the Bilbao Angeles Custodios prison; an older one was later to become a Jesuit priest and another one a construction engineer. His sister María Teresa worked as a Carlist nurse during the Civil War. Republic Given lack of information on political preferences of his parents it is not clear whether Arellano inherited the Carlist outlook from his ancestors; it appears to be the case as most of the siblings got involved in Traditionalism. It is also neither known whether he was engaged in any of the three Traditionalist streams prior to their re-unification in the early 1930s. He is probably first noted as active within the public realm during the first electoral campaign of the Republic in 1931; engaged in Juventud Tradicionalista, he kept delivering harangues in favor of Carlist candidates in small locations like Sangüesa in Eastern Navarre. Already the following year he was recorded busy in Carlist propaganda beyond his native region, speaking at various meetings during Gran Setmana Tradicionalista in Catalonia. During that period he must have approached Tomás Domínguez Arévalo, the Carlist national political leader, 24 years his senior but native of Villafranca, just 9 km away from Caparroso. When discussing the 1933 events scholars already refer to Arellano as Arévalo's protégé; indeed conde Rodezno remained Arellano's mentor for the next 20 years. During the 1933 electoral campaign Arellano was included as Carlist candidate on the Navarrese Union of the Right coalition; he was comfortably elected with 72 thousand votes and together with José Luis Zamanillo became one of the youngest Traditionalist deputies ever. In great national politics Arellano followed Rodezno and his policy of seeking alliance within a broad monarchist grouping, first in coalition named as TYRE and later having signed manifiesto constitutivo of Bloque Nacional; he remained active in the latter despite discouragement from the emerging Carlist leader, Manuel Fal Conde. Another thread of