Don Eugenio de Ostos y Del Valle, born Ecija, Seville, Spain, moved to Camagüey, Cuba, and married, in 1736, Doña María Josefa del Castillo y Aranda. Their son Don Juan José de Ostos y del Castillo, who was born in Camagüey, Cuba, would eventually pass through the Dominican Republic, where he married Doña María Altagracia Rodríguez Velasco, eventually settling in Mayagüez, Puerto Rico, where his son Don Eugenio María de Hostos y Rodríguez was born.