+---Pedro Olbi (28 MAY 1922-)
| +---Maria Sartori 
+---Pedro Roberto Olbi
| | +---Manuel de Freitas (18 NOV 1876-25 DEC 1958)
| +---Alice de Freitas (05 DEC 1926-)
| | +---Domencio Ziliotto
| | +---Luigi Ziliotto (1853-13 NOV 1941)
| | | +---Aurelia Novelli
| +---Teresa Vittoria Ziliotto (01 JUN 1885-18 OCT 1936)
| | +---Tronco Sartorelli
| | +---Giuseppe Sartorelli
| +---Angela Sartorelli (1858-05 JAN 1936)
| +---Antonia Cavinatto (ABT 1828-)
Yvi Mayara Malandrin Olbi
+---Maria Amelia Malandrin