Luis Arellano Dihinx (1906–1969) was a Spanish Carlist and Francoist politician. He is recognized as one of the leaders of the so-called Juanistas, a faction within Carlism pressing recognition of the Alfonsist claimant Don Juan de Borbón as a legitimate Carlist heir to the throne. Family and youth The Arellano family counts among the oldest ones in Navarre; it was first noted in the 14th century and is related to the family of medieval Navarrese kings. Over the centuries it got extremely branched with representatives in many regions of Spain, though mostly in the North. One of its branches held large estates in Caparroso, in the Southern part of Navarre known as Ribera Aragón; in the early 19th century José Arellano y Ochoa was its alcalde and one of key figures. Luis's father, Cornelio Arellano Lapuerta (1867-1935), a native of Caparroso, made his name as engineer and entrepreneur, growing into mid-ranks of the Navarrese bourgeoisie. His engineering works ranged from Irati Train, the railroad line connecting Pamplona and Sangüesa across a difficult, wooded and hilly Irati terrain, to hydrotechnical constructions on the Ebro and other rivers. He held stakes in Hidráulica de Moncayo and was long-time vice-president of Arteta, a water-pipe company. He is best known, however, as co-founder and co-owner of Múgica, Arellano y Compañía, the Pamplona-based company which produced and traded agricultural machinery. Already in the 1920s it operated 20 subsidiaries, some of them as far as Badajoz, Seville and Cordoba; later on it grew to the 16-th largest company in Navarre. In the 1930s Cornelio Arellano was among the most influential people in the Navarrese power-generation industry and a well recognized engineer. Cornelio Arellano married a Pamplonesa, Juana Dihinx Vergara (1872-1969); with her father, Pascual Dihinx Azcárate, also an engineer engaged in Hidraúlica de Moncayo and other companies, she was coming from the same bourgeoisie background. The newlyweds followed the professional lot of Cornelio; in the early 20th century they lived in Zaragoza, to settle in Madrid in the 1920s. The couple had 7 children, 5 of them boys. Political preferences of Cornelio and Juana are not clear, except that she came from the family cultivating the Basque heritage; however, they brought up the children in highly Catholic ambience. It is not known whether Luis frequented the schools in Madrid or elsewhere, though he enrolled at the Jesuit University of Deusto in Bilbao. He graduated in law