William de Braose was born circa 1197 in Brecon, Wales, United Kingdom to Reginald de Braose, 9th Baron Abergavenny (1178-1228) and Grecia de Briwere (c1176-bef1215) and died 2 May 1230 of unspecified causes. He married Eva Marshal (1203-1246) .
|Offspring of William de Braose and Eva Marshal (1203-1246)|
|Isabella de Braose (1222-)|
|Maud de Braose (1224-1300)||1224 Wales||23 March 1300 Herefordshire, England||Roger Mortimer, 1st Baron Mortimer of Wigmore (1231-1282)|
|Eleanor de Braose (1226-1251)||1226||1251||Humphrey de Bohun (-1265)|
|Eva de Braose (-1255)||England||July 1255 England||William III de Cantilupe (-1254)|
|Bertha De Braose (Abt 1230-?)|