Mathilde de Beaugency was born circa 1115 to Raoul I de Beaugency (1068-1113) and Matilda de Vermandois (1080-1130) and died circa 1162 of unspecified causes. She married Eudes de Sully (-aft1162) .
Children
| Name | Birth | Death | Joined with |
| Gilles III de Sully (-c1195) | 1195 | Luce de Charenton (c1145-1206) | |
| Henri de Sully (-1199) | |||
| Eudes de Sully (c1168-1208) | |||
| Adeline de Sully (-) | |||
| Agnes de Sully (c1130-c1177) | 1130 | 1177 | Renaud de Montfaucon (c1125-1184) |
| Mahaut de Sully (-) | |||
Footnotes (including sources)
| ‡ General |
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| ¶ Death |
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