Editing Robert Fitzhamon (section)

==Marriage and progeny==
Between 1087 and 1090, Robert Fitzhamon married Sybil, apparently the youngest daughter of [[Roger of Montgomery, 1st Earl of Shrewsbury]] by his first wife, [[Mabel de Bellême|Mabel Talvas]], daughter of [[William I Talvas]]. She survived her husband and is said to have entered a convent with two of her daughters. 

By his wife, Robert Fitzhamon is said to have had four daughters including:
*[[Mabel FitzRobert, Countess of Gloucester|Mabel]], eldest daughter, who inherited his great estates and in 1119 married [[Robert, 1st Earl of Gloucester|Robert de Caen, 1st Earl of Gloucester]], a natural son of King Henry I (1100-1135). Fitzhamon's huge land-holdings in several counties formed the [[English feudal barony|feudal barony of Gloucester]]<ref>Sanders, p. 6</ref> which was inherited by his son-in-law Robert de Caen, who, in 1122, was created 1st [[Earl of Gloucester]].<ref>Sanders, p. 6</ref>  Robert Fitzhamon's great-granddaughter, [[Isabel of Gloucester]] married King [[John of England|John]] (1199-1216).
*Isabella (or Hawisa), said to have married a count from Brittany, but no further details exist.