Olga Nicolis dei Conti de Robilant (born 1900) (b. 1900) Parents Contessa Valentina Mocenigo Edmondo Nicolis, Count of Robilant and Cereaglio Children Olga Alvares Pereira de Melo Donna Graziella Alvares Pereira Siblings Carlo Nicolis, Conte di Robilant e Cereaglio Andrea Nicolis Edmondo Nicolis Gian Francesco Nicolis Partners Dom Antonio Alvares Pereira de Melo, Marques de Cadaval