Caption:
Carlos María Isidro de Borbón (1788-1855), known as Don Carlos. Infante of Spain, the first Carlist pretender to the Spanish throne as Carlos V. Portrait. Lithography. Detail. "Historia de la guerra civil y de los partidos liberal y carlista" (History of the Civil War and the Liberal and Carlist parties), by Antonio Pirala. Volume I. Madrid, 1868.