Which historical figure inspired Augusto Roa Bastos's novel Yo el supremo?

Augusto Roa Bastos's novel Yo el supremo (1974) is based on the life and rule of José Gaspar Rodríguez de Francia, who served as the dictator of Paraguay during the early 19th century.12

Known as "El Supremo," Francia established an intensely personal, isolationist regime that sought national self-sufficiency at the expense of political liberty. Roa Bastos’s work explores this historical period, utilizing the figure of the dictator to examine over a century of Paraguayan history.12