Boulogne, Eustace III Count
| Birth Name | Boulogne, Eustace III Count 1 |
| Gender | male |
| Age at Death | 66 years, 24 days |
| Birth date | 1059 (Boulogne, Pas-de-Calais, Nord-Pas-de-Calais, France) |
| Death date | 25 January 1125 (Boulogne, Pas-de-Calais, Nord-Pas-de-Calais, France) |