Guglielmo was the son of unknown parents. The date and place of his birth have not been found.
He died in BET 0924 AND 0933. The place is not known.
His wife is not known. They were married, but the date and place have not been found. Their only known child was Aleramo (0904-0993).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | BET 0924 AND 0933 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | marchese di Monferrato e Liguria |