Fergant de Brittany, Alain IV
| Birth Name | Fergant de Brittany, Alain IV |
| Gender | male |
| Age at Death | 52 years, 9 months, 12 days |
| Birth date | 1 January 1067 (Bretagne, Indre, Centre, France) |
| Death date | 13 October 1119 (Choeur De Labbatiale De Saint, Redon, Ille-et-Vilaine, France) |
