Gemma was born about 1750 in Bugnara, L'Aquila, Italy, the daughter of unknown parents.
Her husband was Simone Petoia. They were married, but the date and place have not been found. Their only known child was Maria Grazia (c1779-1813).
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | ABT 1750 |
|