I'm a Fortuna from Dominican Republic too. I tracked my ancestry to Vitorino Foruna, a black men that came from Italy. He had 3 sons. One of them (Jose Fortuna, my grandfather) who died in Loma de Cabrera (D-circa 1949). We know that one of the his brothers lived in Monte Cristy (this is the grandfather of Eduardo Fortuna a well known radio host in Santiago DR) and from last brother, that lived in south-west of the Dominican Republic, I know that few of his decendant were police and military.