Guillaume was the son of unknown parents. The date and place of his birth have not been found.
His wife was Hélène de Ponthieu. They were married, but the date and place have not been found. They had no known children.
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | chevalier |
Note 1
Nicolas baron de Cleuville & Julianne de Thorotte