Beatrice Capet-Bourgogne du Viennois was born 1205 to André Guigues VI du Viennois (1184-1237) and Beatrix de Sabran (1182-1215) and died after 1248 of unspecified causes. She married Amaury VI de Montfort (c1190-1241) 1211 JL .
Children
| Name | Birth | Death | Joined with |
| Jean de Montfort (c1223-1249) | 1223 | 1249 Cyprus | Jeanne de Châteaudun (aft1220-1254) |
| Marguerite de Montfort | |||
| Laure de Montfort (c1227-1270) | 1227 | 25 July 1270 | Ferdinand de Ponthieu (1239-1260) Henri VI de Grandpré (1240-1287) |
| Adela de Montfort (1230-1279) | 1230 | 28 March 1279 | Simon II de Clermont (1208-1280) |
| Pernelle de Montfort (-1275) | |||