She was born to Alberto Emilio Fiallo Billini (1945–) and Giselle Josephine Scanlon Grullón (1956–), both prominent doctors. Her father was son of Margarita María Billini Morales, a painter,[2] and Antinoe Fiallo Rodríguez; and thus, a nephew of Viriato Fiallo Rodríguez, and first cousin-once removed of Oscar de la Renta. Her mother, Giselle Scanlon, was born to Thomas Scanlon, an Irish American, and Zaida Grullón Gómez, a Dominican;[3] Scanlon was also Miss Dominican Republic 1974[3] and is currently executive director of the Instituto Nacional de la Salud (Insalud).[4]