Jesús Requejo San Román (1880-1936) was a Spanish Catholic militant, theorist of society and politician; the Catholic Church declared him a martyr and a candidate for sainthood. He was locally known in the provinces of Zamora and Toledo for his activity in education, charity and agrarian syndicalism. His key work, Principios de Orientación Social, made some moderate impact among Spanish Catholic intellectuals of the mid-1930s. Politically he evolved from centre-left to extreme right: initially Requejo supported the Romanonista dynastic Liberalism, then he turned towards accidentalist Acción Católica, and finally he joined Carlism. His career climaxed in the mid-1930s; since 1934 he headed the provincial Carlist structures in Toledo and in 1936 he served as a Carlist deputy to the Cortes.