Who is Jijibou from The Viceroy of Ouidah and what is their importance?

Jijibou is Francisco's Dahomean wife. When he marries her, he takes a significant step away from the Portuguese manners he has maintained in Ouidah, as he begins to become increasingly Africanized. Jijibou later becomes mistress of Francisco's seraglio and the overseer of his many illegitimate children. She probably grows to hate him, although she wisely keeps her feelings concealed.