Maud de Lacy, Countess of Lincoln was born 25 January 1223 to John de Lacy (c1192-1240) and Margaret de Quincy (1206-1266) and died circa 1287 of unspecified causes. She married Richard de Clare, 6th Earl of Hertford (1222-1262) 25 January 1238 JL .
Children
| Name | Birth | Death | Joined with |
| Isabel de Clare (c1240-1271) | 1240 | Guglielmo VII del Monferrato (c1240-1292) | |
| Gilbert de Clare, 7th Earl of Hertford (1243-1295) | 2 September 1243 Christchurch, Hampshire, England, United Kingdom | 7 December 1295 Monmouth, Wales, United Kingdom | Alice de Lusignan (aft1236-1290) Joan of Acre (1272-1307) |
| Thomas de Clare (1245-1287) | 1245 | 29 August 1287 | Juliana FitzGerald (c1263-1300) |
| Bogo de Clare (1248-1294) | |||
| Margaret de Clare (1250-1312) | |||
| Rose de Clare (1252-1317) | 17 October 1252 Tonbridge, Kent, England, United Kingdom | 1317 | Roger de Mowbray, 1st Baron Mowbray (1254-1297) |
| Eglentina de Clare (?-1257) | |||
Footnotes (including sources)
| ‡ General |
| ¶ Death |
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