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Adelaide Carolingian de Soissons, Countess regnant of Soissons, was born 1026 to Renaud I de Soissons (990-1057) and Adelaide de Roucy (?-?) and died 1097 of unspecified causes. She married Guillaume Busac of Eu (1022-1077) 1045 JL .
Children
| Name | Birth | Death | Joined with |
| Lithuise de Soissons (1045-1112) | 1045 | 1112 | Milon I de Montlhéry (1040-1096) |
| Agnès de Soissons (1057-1124) | 1057 | 1124 | Hervé I de Montmorency (1040-1094) |
| Ade de Soissons (1058-c1105) | 1058 | 1105 | Gauthier de Braine (1040-?) |
| Ramentrude de Soissons (1065-1117) | 1065 | 1117 | Raoul I de Nesle (1060-1121) |
Footnotes (including sources)
| ‡ General |