"It appears to have been printed in Germany, and is the fabrication of some needy and ignorant impostor ... He makes Nicolas Roubiouni a Spaniard by birth, a rogue by breeding, and a Jesuit by profession, who raises a rebellion among the Indians of Nova Colonia ... proclaims himself King of Paraguay ... is invited to S. Paulo by the Mamalucos ... and takes the title of emperor."--Southey, R., Hist. of Brazil. London, 1817-22. v. 3, p. 474.
Nicolas Neenguiru, a Guarani chief, became notorious as King Nicolas of Paraguay, with no real basis in fact. cf. Southey, R. Hist. of Brazil, v. 3, p. 468, 474-475; Dobritzhofer, M. An account of the Abipones, v. 1, p. 27-32.