 
| Type | Valeur | 
|---|---|
| Titre | Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne, Sutton Publishing Lt | 
| Personnes | 
|---|
|  EITIENNE de Bretagner Comte de Penthièvre | 
| Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne, Sutton Publishing Lt, X:786-7. | 
| "21 Apr 1135 or 1136." [PFT:AQ] [S:Titl] Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne, Sutton Publishing Lt [Page] X:786-7 [Text] 21 Apr 1135 or 1136 [/PFT] |