 Rondeau was born in La Rochelle, Aquitaine, France, the son of Pierre Rondeau and Catherine Bourgeois.He was married to Lorenza Pereira, daughter of Ricardo Pereyra and Maria Josefa Cabral, belonging to a Creole family of Portuguese roots.His son, José Rondeau y Pereyra, served as Supreme Director of the United Provinces of the Río de la Plata in 1815.