Giovanni was born in 1887 in Taranta Peligna, Chieti, Italy, the son of Pietrantonio Martino but his mother is unknown.
His wife is not known. They were married, but the date and place have not been found. Their only known child was Alessandro Nicola (1898-?).
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | 1887 |
|