He is to provide arms and support to a megalomaniac named Don Julian Alvarado, who is calling himself "El Supremo" or "The Almighty" (Alec Mango), in his rebellion against Spain, an ally of Britain's enemy France.
Pasquale Condello (born 1950), leader of the Italian 'Ndrangheta crime organization
C. S. Forester's 1937 novel The Happy Return, set in Central America in 1808, features a character El Supremo who claims to be a descendant of Alvarado by a (fictional) marriage to a daughter of Moctezuma.