Guillaume was born in 1610, the son of unknown parents. The place is not known.
His wife was Clara Eugenie van Horne, who he married in 1660. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | 1610 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | comte de Boulers |
Note 1
son of Guillaume de Montmorency, seigneur de Neuville-Wistasse & Mare de Montjoye, comtesse de Roeselare