| Etienne I de Penthievre | Hedwig v.Guincamp | Conan III. of Richmond * de Bretagne | Matilda of England? |
| Alan II. de Penthievre * de Bretagne * of Cornwall a. Richmond | Berthe de Bretagne | ||
| Conan IV. Duc, Earl de Penthievre * de Bretagne * of Richmond*c.1138, +20.2.1171 |