I've spent sometime looking at the 'sources' and I'm not convinced that Cecily de Valoines married Geoffrey of Norwich as suggested by http://www.lisa.com/bdm/d/de_valoines/cecily_de_valoines_105258.html.
Above all, the source at http://www.knight-france.com/geneal/names/2421.htm appears to have more historical support which I will continue to try and tie down.
Can anyone contribute any other sources that might contribute?
Will Chapman Jr
http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL2.htm
ROBERT de Ufford, son of --- (-before 9 Sep 1298). He had interests in Ufford, Suffolk[485].
m firstly (before 12 May 1273) as her second husband, MARY, widow of WILLIAM de Say, daughter of --- (-after 10 Aug 1280).
m secondly (before [1286/87]) JOAN, daughter of --- (-after 18 Nov 1307).
Robert de Ufford & his first wife had two children
1. ROBERT de Ufford (11 Jun 1279-9 Sep 1316 or before). He was summoned to Parliament 4 Mar 1309, whereby he is held to have become Lord Ufford. m (before 1298) CECILY de Valoignes, daughter of ROBERT de Valoignes & his wife Eva Tregoz née --- ([1280/81]-16 Jul 1325). Robert & his wife had six children: ....
http://fmg.ac/Projects/MedLands/ENGLISHNOBILITYMEDIEVAL3T-Z.htm#Cec...
1. ROBERT de Valoignes (-after 6 Aug 1282). m ---. The name of Robert’s wife is not known. Robert & his wife had one child:
a) ROBERT de Valoignes (-before 6 Aug 1282). A writ dated 6 Aug "10 Edw I", after the death of "Robert son of Robert de Valoignes alias de Waleyns, de Valonyes, de Waloynis, de Waloniis, de Valoynes", named "his daughters Roysea aged 2 at the feast of All Saints 10 Edw I and Cecily aged 1 about the same feast are his next heirs” and specifies the dower of “Eva late his wife...the king’s cousin”[511]. m EVA, daughter of ---. A writ dated 6 Aug "10 Edw I", after the death of "Robert son of Robert de Valoignes alias de Waleyns, de Valonyes, de Waloynis, de Waloniis, de Valoynes", named "his daughters Roysea aged 2 at the feast of All Saints 10 Edw I and Cecily aged 1 about the same feast are his next heirs” and specifies the dower of “Eva late his wife...the king’s cousin”[512]. Robert & his wife had two children:
ii) CECILY de Valoignes ([1280/81]-16 Jul 1325). A writ dated 6 Aug "10 Edw I", after the death of "Robert son of Robert de Valoignes alias de Waleyns, de Valonyes, de Waloynis, de Waloniis, de Valoynes", named "his daughters Roysea aged 2 at the feast of All Saints 10 Edw I and Cecily aged 1 about the same feast are his next heirs” and specifies the dower of “Eva late his wife...the king’s cousin”[514]. m (before 1298) ROBERT de Ufford, son of ROBERT de Ufford & his first wife Mary --- (11 Jun 1279-9 Sep 1316 or before). He was summoned to Parliament 4 Mar 1309, whereby he is held to have become Lord Ufford.
The de Norwich family tree is here
Alfred Suckling, 'Mettingham', in The History and Antiquities of the County of Suffolk: Volume 1 (Ipswich, 1846), pp. 168-183. British History Online http://www.british-history.ac.uk/no-series/suffolk-history-antiquit... [accessed 8 May 2016].
http://www.british-history.ac.uk/sites/default/files/publications/p...
The name of the wife of Geoffrey de Norwich (father of Walter) seems unknown, according to Burke's, as quoted here
http://cybergata.com/roots/4260.htm