Aleksandra Aćimović Popović (January 20, 1946), better known as Sasha Montenegro, is a Mexican actress and vedette born in Italy of Yugoslav descent. She is the widow of the former president of Mexico José López-Portillo. Aleksandra Aćimović Popović (January 20, 1946), better known as Sasha Montenegro, is a Mexican actress and vedette born in Italy of Yugoslav descent. She is the widow of the former president of Mexico José López-Portillo.