Robert de Aguillon

  Information about this person:

• Background Information: Some Corrections and Additions to the Complete Peerage.
It seems that Joan, the daughter and coheir of Robert Aguillon, by Margery his wife, was the wife of Ralph FitzBernard (who died before 10 June 1238).

In Trinity 1239, Joan who was the wife of Ralph FitzBernard appears as one of the daughters of Margery, the sister of Idonea de Beche, daughter of William de Fresney [Curia Regis Rolls, vol.16, no 614]. Another daughter of Margery is named as Isabel (deceased, leaving a son Adam, a minor, the son of Robert de Cokefeud), and these two, together with Thomas de Poninges and Ela his wife, and Giles de Argenteam and Margery his wife, were summoned to answer with Idonea.

~Cokayne's Complete Peerage, 2nd Edition, (FitzBernard), Vol. V, p. 400, footnote (b) ¹⁴¹

Robert married Margery de Fresney, daughter of William de Fresney and Unknown. ¹⁴¹