Rolland was the son of unknown parents. The date and place of his birth have not been found.
His wife was Jeanne Gaudin. They were married, but the date and place have not been found. Their only known child was Rolland IV (?-1470).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | vicomte de Coëtmen et de Tonquédec |