Son of William by Maud. [Hasteds History of Kent Vol 3 page 370]
This name Rualon, who married Maud de Muneville, heiress of Folkestone, being most capriciously spelt, not only Roellandus, Ruellinus, Roelent, Rualo, and Ruallon, but also Graalandus and Graelent, - Planche
Did Rualon have a brother Robert? [See notes on his possible grandfather Guitmond/Wymond]
Are Rualon and Robert the same person? Many genealogists seem to think so, but not all.
Did Rualon marry twice?
There seems to be a lot of confusion at this point in the family tree!
In 1066 STANTON [a manor in Oxfordshire], including land in South Leigh, was held by Alnod, and in 1086 by Odo of Bayeux: it was reckoned at 26 hides, of which one lay in Hanborough and was given to Oseney abbey c. 1138. Another 1 ? hide in 'Pereio', probably in South Leigh, and held under Odo by Wadard, was apparently absorbed into the main Stanton estate before the late 12th century. Following Odo's forfeiture the estate was held possibly by Ranulf Flambard, and in 1101 by Rualon d'Avranches, perhaps in custody. [Hist. Mon. Abingdon (Rolls Ser.), ii. 84-5; Royal Writs Eng. (Selden Soc. lxxvii), p. 485] Before 1130 Henry I gave it to his second wife Queen Adela, who alienated it piecemeal, mostly after 1135.
-'Stanton Harcourt: Manors and other estates', A History of the County of Oxford: Volume 12: Wootton Hundred (South) including Woodstock (1990), pp. 274-81. URL: http://www.british-history.ac.uk/report.asp?compid=8119
. Date accessed: 20 August 2005.