Francisco José Mariano Duarte, geboren in Maracaibo, wo sein Vater, Francisco Antonio Duarte Sánchez, war eine allgemeine, seine Mutter war Delfina Matilde del Carmen Isava Gonzalez de Duarte. ###>Francisco José Mariano Duarte was born in Maracaibo, where his father, Francisco Antonio Duarte Sánchez, was a general; his mother was Delfina Matilde del Carmen Isava Gonzalez de Duarte.